Merge remote-tracking branch 'upstream/master'

26 files changed, 562 insertions, 59 deletions

diff --git a/challenge-004/abigail/README.md b/challenge-004/abigail/README.md
index 75267e87b2..8cfd5b4918 100644
--- a/challenge-004/abigail/README.md
+++ b/challenge-004/abigail/README.md
@@ -23,12 +23,19 @@ and printing. We may even need to filler comments to make it all work out.
 ### Solutions
 * [AWK](awk/ch-1.awk)
 * [Bash](bash/ch-1.sh)
+* [bc](bc/ch-1.bc)
 * [C](c/ch-1.c)
+* [Go](go/ch-1.go)
+* [Java](java/ch-1.java)
 * [Lua](lua/ch-1.lua)
 * [Node.js](node/ch-1.node)
+* [Pascal](pascal/ch-1.p)
 * [Perl](perl/ch-1.pl)
 * [Python](python/ch-1.py)
+* [R](r/ch-1.r)
 * [Ruby](ruby/ch-1.rb)
+* [Scheme](scheme/ch-1.scm)
+* [Tcl](tcl/ch-1.tcl)
 
 
 ## [Challenge 2](https://perlweeklychallenge.org/blog/perl-weekly-challenge-004/#challenge-2)
diff --git a/challenge-004/abigail/awk/ch-1.awk b/challenge-004/abigail/awk/ch-1.awk
index 2264ee94d1..36fec0b98f 100644
--- a/challenge-004/abigail/awk/ch-1.awk
+++ b/challenge-004/abigail/awk/ch-1.awk
@@ -1,7 +1,7 @@
 #!/usr/bin/awk
 
 #
-# See ../README.md
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 #
 
 #
@@ -48,7 +48,7 @@ BEGIN {
            "'S/z}#vS|i)S9[=*/nCG)PMaY-{pML);vN?%kRcr#*.Tg,x;42'(1w.0dA)S" \
            ")-us%.#1$R-rkwf%m%B-(ctK8+4Sn^%*C1Y-wqsr%eNg11%$De&&07q+%1>-" \
            "+mCl2%)V#w%#y:[,?t*D$64`9.U+{`-SBX-+gi/o)0B$q#V$tW+#lmM)';EH" \
-           "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiKB"
+           "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiK?"
     printf ("3.")
     format = "%0" out_size "d"
     for (i = 1; i <= length (line); i += in_size) {
@@ -67,8 +67,8 @@ BEGIN {
 }
 
 #
-#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
-#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER?
-#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
-#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER!
+#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER?
+#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+#  FODDER FODDER FODDER FODDER!
 #
diff --git a/challenge-004/abigail/awk/ch-2.gawk b/challenge-004/abigail/awk/ch-2.gawk
index 11c73f7913..d5954a9edf 100644
--- a/challenge-004/abigail/awk/ch-2.gawk
+++ b/challenge-004/abigail/awk/ch-2.gawk
@@ -1,7 +1,7 @@
 #!/opt/local/bin/gawk
 
 #
-# See ../README.md
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 #
 
 #
diff --git a/challenge-004/abigail/bash/ch-1.sh b/challenge-004/abigail/bash/ch-1.sh
index 1740f2d690..6dfa72a723 100644
--- a/challenge-004/abigail/bash/ch-1.sh
+++ b/challenge-004/abigail/bash/ch-1.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# See ../README.md
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 #
 
 #
@@ -61,19 +61,18 @@ $K`U.%bSL*&dG^f,lN@.+jGbU.g8,s&FwUP$9p3S/)f(4,y><Y0vnKH(:}m~
 'S/z}#vS|i)S9[=*/nCG)PMaY-{pML);vN?%kRcr#*.Tg,x;42'(1w.0dA)S
 )-us%.#1$R-rkwf%m%B-(ctK8+4Sn^%*C1Y-wqsr%eNg11%$De&&07q+%1>-
 +mCl2%)V#w%#y:[,?t*D$64`9.U+{`-SBX-+gi/o)0B$q#V$tW+#lmM)';EH
-%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiKB
+%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiK?
 --
 echo
 
 #
 #  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
-#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
-#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER,
+#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER.
 #  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER?
 #  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
-#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER?
 #  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER:
 #  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
-#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
-#  FODDER FODDER FODDER FODDER FODDER FODDER!
+#  FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER!
 #
diff --git a/challenge-004/abigail/bash/ch-2.sh b/challenge-004/abigail/bash/ch-2.sh
index e9a2935272..38ea2179e2 100644
--- a/challenge-004/abigail/bash/ch-2.sh
+++ b/challenge-004/abigail/bash/ch-2.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# See ../README.md
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 #
 
 #
diff --git a/challenge-004/abigail/bc/ch-1.bc b/challenge-004/abigail/bc/ch-1.bc
new file mode 100644
index 0000000000..98f682f3ab
--- /dev/null
+++ b/challenge-004/abigail/bc/ch-1.bc
@@ -0,0 +1,59 @@
+#!/usr/bin/bc
+
+#
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
+#
+
+#
+# Run as: bc -l ch-1.bc
+#
+
+scale = 3240
+4 * a (1)
+halt
+
+#
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER?
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER:
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER!
+#
diff --git a/challenge-004/abigail/c/ch-1.c b/challenge-004/abigail/c/ch-1.c
index 21131ffb53..89ee6b0e96 100644
--- a/challenge-004/abigail/c/ch-1.c
+++ b/challenge-004/abigail/c/ch-1.c
@@ -3,7 +3,7 @@
 # include <string.h>
 
 /*
- * See ../README.md
+ * See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
  */
 
 /*
@@ -48,7 +48,7 @@ int main (void) {
           "'S/z}#vS|i)S9[=*/nCG)PMaY-{pML);vN?%kRcr#*.Tg,x;42'(1w.0dA)S" \
           ")-us%.#1$R-rkwf%m%B-(ctK8+4Sn^%*C1Y-wqsr%eNg11%$De&&07q+%1>-" \
           "+mCl2%)V#w%#y:[,?t*D$64`9.U+{`-SBX-+gi/o)0B$q#V$tW+#lmM)';EH" \
-          "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiKB";
+          "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiK?";
     printf ("3.");
     size_t l = strlen (pi);
     for (size_t i = 0; i < l; i += in_size) {
@@ -67,8 +67,7 @@ int main (void) {
 }
 
 /*
- * FODDER  FODDER  FODDER  FODDER  FODDER  FODDER FODDER
- * FODDER  FODDER  FODDER  FODDER  FODDER  FODDER FODDER.
- * FODDER  FODDER  FODDER  FODDER  FODDER  FODDER FODDER.
+ * FODDER  FODDER  FODDER  FODDER  FODDER  FODDER FODDER FODDER:
  * FODDER  FODDER  FODDER  FODDER  FODDER  FODDER FODDER.
+ * FODDER  FODDER  FODDER  FODDER  FODDER  FODDER FODDER!!
  */
diff --git a/challenge-004/abigail/c/ch-2.c b/challenge-004/abigail/c/ch-2.c
index 3df60fc2dc..bbb7375b75 100644
--- a/challenge-004/abigail/c/ch-2.c
+++ b/challenge-004/abigail/c/ch-2.c
@@ -9,7 +9,7 @@
 # define NR_OF_LETTERS 26
 
 /*
- * See ../README.md
+ * See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
  */
 
 /*
diff --git a/challenge-004/abigail/go/ch-1.go b/challenge-004/abigail/go/ch-1.go
new file mode 100644
index 0000000000..757181e876
--- /dev/null
+++ b/challenge-004/abigail/go/ch-1.go
@@ -0,0 +1,73 @@
+package main
+
+//
+// See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
+//
+
+//
+// Run as: go run ch-1.go
+//
+
+import (
+    "fmt"
+)
+
+func main () {
+    first_ord := int ('"') + 1;
+    skip_ord  := int ('\\');
+    last_ord  := int ('~');
+    ord_range := last_ord - first_ord;
+    in_size   := 5;
+    pi        := [] rune (
+        "%(uP7+Y`ME)gy(7')v?;%s^qc(Mj1}16idp'ONGs'2m.o,1HLY'}~P61@@Y-" +
+        "*O/.v,Jc~D+ttA'&EPjR(zXxD$dr,M$P=-f*YQqe,GIZ`0x5oL1(mpl17en`" +
+        ")Q$ge,L6_5.I;hj%yy6n,L_t')dtyy)[ugS&-3(c&lC:a&~8SP#+iis+WR&8" +
+        "*Y;V3/+JD@-J>7u0$Nh<#2&:@+#=`/*YtP-0t8uf+tf/V&yjx>+]S=&%d}7z" +
+        "0YXa9$SOyt$*mzv1&X(W(.{0G-Vya`0a}KI0pQD2,nV0:,WE0+#?F[>(iMb}" +
+        "%k(tB/UO0m.8R'x%Vys_-|IgL.y-n6(v[*#+<w,K&ph2o.LfLw.'YJB%SI/r" +
+        "-RGB[0/yKw);ml1+SlKv.UDG6&jY3_#=Nry$t6Ng/YXEe%A)of.>/-J1#[`]" +
+        "&*M<M1Uqt]#f=#g-a$q{$Gn<,#CLb7((C*0,D]yd&c4OS#Ql2h%gd7>#'1wg" +
+        "-}+B}*jWDi)/2&k,h|/)+eu-3)9{mU-`:]M/YF$a.O0SF0{~2C.EjkZ&>|lD" +
+        "#%UmL+w)$V&14Ty0arq+%xnAo/XX/y0_=Bl/)f*}'Gc88'GV;X1RG~<+gJ8p" +
+        "&^E~A'/3N=*R2|j&SgD@-0St?*jL@'-ZsbD$+_hy.#HkF0cO_[#t0wL-8._r" +
+        "#0)@p#4(ha+lyD6,[|1w%_K//+c2#j.4xl2)SpX=.>)gp$R)ZP,IS%@,}%#J" +
+        "*1zj[,sIw#%6pwl%D'fk#Bx6'%4?.0&c9'?#R7P|&ZJ;M&q6q&&|h9?0LVI}" +
+        "(2lq>#/G+<,Bv`l+U'K?'2i}q+,J8W/7dU++X(l51R>#T&)fV0'I%FC%HHkt" +
+        "%{(NN&Kn$]*<Aur/2kmb+:Wu&)7%WR/W[BH)+.]`/~B$S.WE~n,J_v]%-h'|" +
+        "%RrIs.:wg4)KQ#G*~I)7%=m]x$z.?F/F:I#*]Lg2(h&,J*}tu6/WWEX+>e0," +
+        "$K`U.%bSL*&dG^f,lN@.+jGbU.g8,s&FwUP$9p3S/)f(4,y><Y0vnKH(:}m~" +
+        "#y7eZ%~4^<1C|Ju$sQ)x0ko[G1)z8e&)U,+'N'y9,)LJT0k+B7-H5gh0z,~X" +
+        "0E:/(.0dlN1&/Rn/[|SL1RLl=)|BoK$K~@E$0j%D)oW$^+bQyn.~]>{*/L)t" +
+        "-Oi$Y*&I1x1Kyk#$}~i|)^4uG%|&sU)XNR-,PLl/.lmT'&_~it-16U9-B~A[" +
+        "(}s.a0~]Zj*<*~%-~N27%$O,*/a,,c%<#@60On3z0~3@B13UOG/A^&K,GRHi" +
+        ",S_:*&9I{_$nCM9&U^*9)WmPj+$TL8.]WpP)CWDR$u#7])K/Bi+,[B9(0~a&" +
+        "&=aag,L-UG#HoAx/=@p,&ux{:0($3X*[J<4,eh{E1F&tE$cGo.&C}15*:u{Z" +
+        ",:*H^'f,=~$,z%B)WZbL$DjA;/oFKa%.>ig/^o.90e/P=*Auex0TD}p/hncA" +
+        "/%d87#/u19,r&sM(A+4V0%4u$.}F+P0o|4e.g(<[#5y<J++`sn,C6]p-t;&]" +
+        "*wEcH.YA#C.|Tl$(2g>y*]3@5%II741/XZ>)Lm6e0``3L%.JF[+Z?8b(tj7C" +
+        "'S/z}#vS|i)S9[=*/nCG)PMaY-{pML);vN?%kRcr#*.Tg,x;42'(1w.0dA)S" +
+        ")-us%.#1$R-rkwf%m%B-(ctK8+4Sn^%*C1Y-wqsr%eNg11%$De&&07q+%1>-" +
+        "+mCl2%)V#w%#y:[,?t*D$64`9.U+{`-SBX-+gi/o)0B$q#V$tW+#lmM)';EH" +
+        "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiK?")
+    fmt . Print ("3.")
+    for i := 0; i < len (pi); i += in_size {
+        out := 0
+        for j := i; j < i + in_size; j ++ {
+            out *= ord_range
+            out += int (pi [j]) - first_ord
+            if int (pi [j]) > skip_ord {
+                out --
+            }
+        }
+        fmt . Printf ("%09d", out)
+    }
+    fmt . Print ("\n")
+}
+
+//
+// FODDER  FODDER FODDER  FODDER FODDER  FODDER FODDER  FODDER FODDER,
+// FODDER  FODDER FODDER  FODDER FODDER  FODDER FODDER  FODDER FODDER,
+// FODDER  FODDER FODDER  FODDER FODDER  FODDER FODDER  FODDER FODDER?
+// FODDER  FODDER FODDER  FODDER FODDER  FODDER FODDER  FODDER FODDER:
+// FODDER  FODDER FODDER  FODDER FODDER  FODDER FODDER  FODDER FODDER!
+//
diff --git a/challenge-004/abigail/java/ch-1.java b/challenge-004/abigail/java/ch-1.java
new file mode 100644
index 0000000000..c93f31fb28
--- /dev/null
+++ b/challenge-004/abigail/java/ch-1.java
@@ -0,0 +1,66 @@
+//
+// See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
+//
+
+//
+// Run as: ln ch-1.java ch1.java; javac ch1.java; java ch1
+//
+
+import java.util.*;
+
+public class ch1 {
+    public static void main (String [] args) {
+        int first   = '"' + 1;
+        int skip    = '\\';
+        int last    = '~';
+        int range   = last - first;
+        int in_size = 5;
+        char [] pi  =
+           ("%(uP7+Y`ME)gy(7')v?;%s^qc(Mj1}16idp'ONGs'2m.o,1HLY'}~P61@@Y-"  +
+            "*O/.v,Jc~D+ttA'&EPjR(zXxD$dr,M$P=-f*YQqe,GIZ`0x5oL1(mpl17en`"  +
+            ")Q$ge,L6_5.I;hj%yy6n,L_t')dtyy)[ugS&-3(c&lC:a&~8SP#+iis+WR&8"  +
+            "*Y;V3/+JD@-J>7u0$Nh<#2&:@+#=`/*YtP-0t8uf+tf/V&yjx>+]S=&%d}7z"  +
+            "0YXa9$SOyt$*mzv1&X(W(.{0G-Vya`0a}KI0pQD2,nV0:,WE0+#?F[>(iMb}"  +
+            "%k(tB/UO0m.8R'x%Vys_-|IgL.y-n6(v[*#+<w,K&ph2o.LfLw.'YJB%SI/r"  +
+            "-RGB[0/yKw);ml1+SlKv.UDG6&jY3_#=Nry$t6Ng/YXEe%A)of.>/-J1#[`]"  +
+            "&*M<M1Uqt]#f=#g-a$q{$Gn<,#CLb7((C*0,D]yd&c4OS#Ql2h%gd7>#'1wg"  +
+            "-}+B}*jWDi)/2&k,h|/)+eu-3)9{mU-`:]M/YF$a.O0SF0{~2C.EjkZ&>|lD"  +
+            "#%UmL+w)$V&14Ty0arq+%xnAo/XX/y0_=Bl/)f*}'Gc88'GV;X1RG~<+gJ8p"  +
+            "&^E~A'/3N=*R2|j&SgD@-0St?*jL@'-ZsbD$+_hy.#HkF0cO_[#t0wL-8._r"  +
+            "#0)@p#4(ha+lyD6,[|1w%_K//+c2#j.4xl2)SpX=.>)gp$R)ZP,IS%@,}%#J"  +
+            "*1zj[,sIw#%6pwl%D'fk#Bx6'%4?.0&c9'?#R7P|&ZJ;M&q6q&&|h9?0LVI}"  +
+            "(2lq>#/G+<,Bv`l+U'K?'2i}q+,J8W/7dU++X(l51R>#T&)fV0'I%FC%HHkt"  +
+            "%{(NN&Kn$]*<Aur/2kmb+:Wu&)7%WR/W[BH)+.]`/~B$S.WE~n,J_v]%-h'|"  +
+            "%RrIs.:wg4)KQ#G*~I)7%=m]x$z.?F/F:I#*]Lg2(h&,J*}tu6/WWEX+>e0,"  +
+            "$K`U.%bSL*&dG^f,lN@.+jGbU.g8,s&FwUP$9p3S/)f(4,y><Y0vnKH(:}m~"  +
+            "#y7eZ%~4^<1C|Ju$sQ)x0ko[G1)z8e&)U,+'N'y9,)LJT0k+B7-H5gh0z,~X"  +
+            "0E:/(.0dlN1&/Rn/[|SL1RLl=)|BoK$K~@E$0j%D)oW$^+bQyn.~]>{*/L)t"  +
+            "-Oi$Y*&I1x1Kyk#$}~i|)^4uG%|&sU)XNR-,PLl/.lmT'&_~it-16U9-B~A["  +
+            "(}s.a0~]Zj*<*~%-~N27%$O,*/a,,c%<#@60On3z0~3@B13UOG/A^&K,GRHi"  +
+            ",S_:*&9I{_$nCM9&U^*9)WmPj+$TL8.]WpP)CWDR$u#7])K/Bi+,[B9(0~a&"  +
+            "&=aag,L-UG#HoAx/=@p,&ux{:0($3X*[J<4,eh{E1F&tE$cGo.&C}15*:u{Z"  +
+            ",:*H^'f,=~$,z%B)WZbL$DjA;/oFKa%.>ig/^o.90e/P=*Auex0TD}p/hncA"  +
+            "/%d87#/u19,r&sM(A+4V0%4u$.}F+P0o|4e.g(<[#5y<J++`sn,C6]p-t;&]"  +
+            "*wEcH.YA#C.|Tl$(2g>y*]3@5%II741/XZ>)Lm6e0``3L%.JF[+Z?8b(tj7C"  +
+            "'S/z}#vS|i)S9[=*/nCG)PMaY-{pML);vN?%kRcr#*.Tg,x;42'(1w.0dA)S"  +
+            ")-us%.#1$R-rkwf%m%B-(ctK8+4Sn^%*C1Y-wqsr%eNg11%$De&&07q+%1>-"  +
+            "+mCl2%)V#w%#y:[,?t*D$64`9.U+{`-SBX-+gi/o)0B$q#V$tW+#lmM)';EH"  +
+            "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiK?") .
+            toCharArray ();
+        System . out . print ("3.");
+        for (int i = 0; i < pi . length; i += in_size) {
+            int out = 0;
+            for (int j = i; j < i + in_size; j ++) {
+                out *= range;
+                out += pi [j] - first;
+                if (pi [j] > skip) {
+                    out --;
+                }
+            }
+            System . out . printf ("%09d", out);
+        }
+        System . out . print ("\n");
+    }
+}
+
+// FODDER FODDER  FODDER FODDER!
diff --git a/challenge-004/abigail/lua/ch-1.lua b/challenge-004/abigail/lua/ch-1.lua
index 03a06fd74b..a2fb3d0b2b 100644
--- a/challenge-004/abigail/lua/ch-1.lua
+++ b/challenge-004/abigail/lua/ch-1.lua
@@ -1,7 +1,7 @@
 #!/opt/local/bin/lua
 
 --
--- See ../README.md
+-- See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 --
 
 --
@@ -37,7 +37,7 @@ local pi = "%(uP7+Y`ME)gy(7')v?;%s^qc(Mj1}16idp'ONGs'2m.o,1HLY'}~P61@@Y-" ..
            "'S/z}#vS|i)S9[=*/nCG)PMaY-{pML);vN?%kRcr#*.Tg,x;42'(1w.0dA)S" ..
            ")-us%.#1$R-rkwf%m%B-(ctK8+4Sn^%*C1Y-wqsr%eNg11%$De&&07q+%1>-" ..
            "+mCl2%)V#w%#y:[,?t*D$64`9.U+{`-SBX-+gi/o)0B$q#V$tW+#lmM)';EH" ..
-           "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiKB";
+           "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiK?";
 
 local in_size  = 5
 local out_size = 9
@@ -64,8 +64,7 @@ io . write ("\n")
 
 
 --
--- FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
--- FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
--- FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
--- FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER!
+-- FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+-- FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+-- FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER FODDER!!!!
 --
diff --git a/challenge-004/abigail/lua/ch-2.lua b/challenge-004/abigail/lua/ch-2.lua
index c1214ac67d..8454fa5d5d 100644
--- a/challenge-004/abigail/lua/ch-2.lua
+++ b/challenge-004/abigail/lua/ch-2.lua
@@ -1,7 +1,7 @@
 #!/opt/local/bin/lua
 
 --
--- See ../README.md
+-- See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 --
 
 --
diff --git a/challenge-004/abigail/node/ch-1.js b/challenge-004/abigail/node/ch-1.js
index aba62f0098..5316f4660d 100644
--- a/challenge-004/abigail/node/ch-1.js
+++ b/challenge-004/abigail/node/ch-1.js
@@ -1,11 +1,11 @@
 #!/usr/local/bin/node
 
 //
-// See ../README.md
+// See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 //
 
 //
-// Run as: node ch-1.js < input-file
+// Run as: node ch-1.js
 //
 
 let pi = "%(uP7+Y`ME)gy(7')v?;%s^qc(Mj1}16idp'ONGs'2m.o,1HLY'}~P61@@Y-" +
@@ -37,7 +37,7 @@ let pi = "%(uP7+Y`ME)gy(7')v?;%s^qc(Mj1}16idp'ONGs'2m.o,1HLY'}~P61@@Y-" +
          "'S/z}#vS|i)S9[=*/nCG)PMaY-{pML);vN?%kRcr#*.Tg,x;42'(1w.0dA)S" +
          ")-us%.#1$R-rkwf%m%B-(ctK8+4Sn^%*C1Y-wqsr%eNg11%$De&&07q+%1>-" +
          "+mCl2%)V#w%#y:[,?t*D$64`9.U+{`-SBX-+gi/o)0B$q#V$tW+#lmM)';EH" +
-         "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiKB";
+         "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiK?";
 
 
 let printf    = require ('printf')
@@ -67,9 +67,8 @@ process . stdout . write ("\n")
 
 
 //
-//  FODDER FODDER  FODDER FODDER  FODDER FODDER  FODDER
-//  FODDER FODDER  FODDER FODDER  FODDER FODDER  FODDER
-//  FODDER FODDER  FODDER FODDER  FODDER FODDER  FODDER
-//  FODDER FODDER  FODDER FODDER  FODDER FODDER  FODDER
-//  FODDER FODDER  FODDER FODDER  FODDER FODDER  FODDER
+//  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER
+//  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER
+//  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER
+//  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER
 //
diff --git a/challenge-004/abigail/node/ch-2.js b/challenge-004/abigail/node/ch-2.js
index a239d89949..6327b42262 100644
--- a/challenge-004/abigail/node/ch-2.js
+++ b/challenge-004/abigail/node/ch-2.js
@@ -1,7 +1,7 @@
 #!/usr/local/bin/node
 
 //
-// See ../README.md
+// See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 //
 
 //
diff --git a/challenge-004/abigail/pascal/ch-1.p b/challenge-004/abigail/pascal/ch-1.p
new file mode 100644
index 0000000000..4a36a15995
--- /dev/null
+++ b/challenge-004/abigail/pascal/ch-1.p
@@ -0,0 +1,73 @@
+Program XXX;
+
+(*                                                                   *)
+(* See https://theweeklychallenge.org/blog/perl-weekly-challenge-004 *)
+(*                                                                   *)
+
+(*                                            *)
+(* Run as:  fpc -och-1.out ch-1.p; ./ch-1.out *)
+(*                                            *)
+
+uses
+  sysutils;
+
+var
+  pi: AnsiString;
+  first, last, skip, dquote, quote, range, ch, i, j, in_size: integer;
+  out: qword;
+
+begin
+  first   := ord ('"') + 1;
+  last    := ord ('~');
+  skip    := ord ('\');
+  dquote  := ord ('"');
+  quote   := ord ('''');
+  range   := last - first;
+  in_size := 5;
+  pi := '%(uP7+Y`ME)gy(7")v?;%s^qc(Mj1}16idp"ONGs"2m.o,1HLY"}~P61@@Y-' +
+        '*O/.v,Jc~D+ttA"&EPjR(zXxD$dr,M$P=-f*YQqe,GIZ`0x5oL1(mpl17en`' +
+        ')Q$ge,L6_5.I;hj%yy6n,L_t")dtyy)[ugS&-3(c&lC:a&~8SP#+iis+WR&8' +
+        '*Y;V3/+JD@-J>7u0$Nh<#2&:@+#=`/*YtP-0t8uf+tf/V&yjx>+]S=&%d}7z' +
+        '0YXa9$SOyt$*mzv1&X(W(.{0G-Vya`0a}KI0pQD2,nV0:,WE0+#?F[>(iMb}' +
+        '%k(tB/UO0m.8R"x%Vys_-|IgL.y-n6(v[*#+<w,K&ph2o.LfLw."YJB%SI/r' +
+        '-RGB[0/yKw);ml1+SlKv.UDG6&jY3_#=Nry$t6Ng/YXEe%A)of.>/-J1#[`]' +
+        '&*M<M1Uqt]#f=#g-a$q{$Gn<,#CLb7((C*0,D]yd&c4OS#Ql2h%gd7>#"1wg' +
+        '-}+B}*jWDi)/2&k,h|/)+eu-3)9{mU-`:]M/YF$a.O0SF0{~2C.EjkZ&>|lD' +
+        '#%UmL+w)$V&14Ty0arq+%xnAo/XX/y0_=Bl/)f*}"Gc88"GV;X1RG~<+gJ8p' +
+        '&^E~A"/3N=*R2|j&SgD@-0St?*jL@"-ZsbD$+_hy.#HkF0cO_[#t0wL-8._r' +
+        '#0)@p#4(ha+lyD6,[|1w%_K//+c2#j.4xl2)SpX=.>)gp$R)ZP,IS%@,}%#J' +
+        '*1zj[,sIw#%6pwl%D"fk#Bx6"%4?.0&c9"?#R7P|&ZJ;M&q6q&&|h9?0LVI}' +
+        '(2lq>#/G+<,Bv`l+U"K?"2i}q+,J8W/7dU++X(l51R>#T&)fV0"I%FC%HHkt' +
+        '%{(NN&Kn$]*<Aur/2kmb+:Wu&)7%WR/W[BH)+.]`/~B$S.WE~n,J_v]%-h"|' +
+        '%RrIs.:wg4)KQ#G*~I)7%=m]x$z.?F/F:I#*]Lg2(h&,J*}tu6/WWEX+>e0,' +
+        '$K`U.%bSL*&dG^f,lN@.+jGbU.g8,s&FwUP$9p3S/)f(4,y><Y0vnKH(:}m~' +
+        '#y7eZ%~4^<1C|Ju$sQ)x0ko[G1)z8e&)U,+"N"y9,)LJT0k+B7-H5gh0z,~X' +
+        '0E:/(.0dlN1&/Rn/[|SL1RLl=)|BoK$K~@E$0j%D)oW$^+bQyn.~]>{*/L)t' +
+        '-Oi$Y*&I1x1Kyk#$}~i|)^4uG%|&sU)XNR-,PLl/.lmT"&_~it-16U9-B~A[' +
+        '(}s.a0~]Zj*<*~%-~N27%$O,*/a,,c%<#@60On3z0~3@B13UOG/A^&K,GRHi' +
+        ',S_:*&9I{_$nCM9&U^*9)WmPj+$TL8.]WpP)CWDR$u#7])K/Bi+,[B9(0~a&' +
+        '&=aag,L-UG#HoAx/=@p,&ux{:0($3X*[J<4,eh{E1F&tE$cGo.&C}15*:u{Z' +
+        ',:*H^"f,=~$,z%B)WZbL$DjA;/oFKa%.>ig/^o.90e/P=*Auex0TD}p/hncA' +
+        '/%d87#/u19,r&sM(A+4V0%4u$.}F+P0o|4e.g(<[#5y<J++`sn,C6]p-t;&]' +
+        '*wEcH.YA#C.|Tl$(2g>y*]3@5%II741/XZ>)Lm6e0``3L%.JF[+Z?8b(tj7C' +
+        '"S/z}#vS|i)S9[=*/nCG)PMaY-{pML);vN?%kRcr#*.Tg,x;42"(1w.0dA)S' +
+        ')-us%.#1$R-rkwf%m%B-(ctK8+4Sn^%*C1Y-wqsr%eNg11%$De&&07q+%1>-' +
+        '+mCl2%)V#w%#y:[,?t*D$64`9.U+{`-SBX-+gi/o)0B$q#V$tW+#lmM)";EH' +
+        '%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiK?';
+  write ('3.');
+  i := 1;
+  while i <= length (pi) do begin
+    out := 0;
+    for j := i to i + in_size - 1 do begin
+      ch := ord (pi [j]);
+      if ch = dquote then
+        ch := quote;
+      out := out * range + ch - first;
+      if ch > skip then
+        out := out - 1;
+    end;
+    i   := i + in_size;
+    write (format ('%.9D', [out]));
+  end;
+  writeln ('');
+end.
diff --git a/challenge-004/abigail/perl/ch-1.pl b/challenge-004/abigail/perl/ch-1.pl
index a36eb78e42..7a8e5a1669 100644
--- a/challenge-004/abigail/perl/ch-1.pl
+++ b/challenge-004/abigail/perl/ch-1.pl
@@ -10,7 +10,7 @@ use experimental 'signatures';
 use experimental 'lexical_subs';
 
 #
-# See ../README.md
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 #
 
 #
@@ -54,8 +54,7 @@ while (<DATA>) {
 print "\n";
 
 #
-# FODDER FODDER FODDER FODDER FODDER FODDER FODDER
-# FODDER FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER FODDER FODDER FODDER!!
 #
 
 __DATA__
@@ -88,4 +87,4 @@ $K`U.%bSL*&dG^f,lN@.+jGbU.g8,s&FwUP$9p3S/)f(4,y><Y0vnKH(:}m~
 'S/z}#vS|i)S9[=*/nCG)PMaY-{pML);vN?%kRcr#*.Tg,x;42'(1w.0dA)S
 )-us%.#1$R-rkwf%m%B-(ctK8+4Sn^%*C1Y-wqsr%eNg11%$De&&07q+%1>-
 +mCl2%)V#w%#y:[,?t*D$64`9.U+{`-SBX-+gi/o)0B$q#V$tW+#lmM)';EH
-%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiKB
+%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiK?
diff --git a/challenge-004/abigail/perl/ch-2.pl b/challenge-004/abigail/perl/ch-2.pl
index 20cd5148b0..be5ee93be6 100644
--- a/challenge-004/abigail/perl/ch-2.pl
+++ b/challenge-004/abigail/perl/ch-2.pl
@@ -10,7 +10,7 @@ use experimental 'signatures';
 use experimental 'lexical_subs';
 
 #
-# See ../README.md
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 #
 
 #
diff --git a/challenge-004/abigail/python/ch-1.py b/challenge-004/abigail/python/ch-1.py
index 0f7f8bf725..1bc0fa720b 100644
--- a/challenge-004/abigail/python/ch-1.py
+++ b/challenge-004/abigail/python/ch-1.py
@@ -1,11 +1,11 @@
 #!/opt/local/bin/python
 
 #
-# See ../README.md
+# See https://theweeklychallenge.org/blog/perl-weekly-challenge-004
 #
 
 #
-# Run as python ch-1.py
+# Run as: python ch-1.py
 #
 
 import sys
@@ -39,7 +39,7 @@ pi = "%(uP7+Y`ME)gy(7')v?;%s^qc(Mj1}16idp'ONGs'2m.o,1HLY'}~P61@@Y-" + \
      "'S/z}#vS|i)S9[=*/nCG)PMaY-{pML);vN?%kRcr#*.Tg,x;42'(1w.0dA)S" + \
      ")-us%.#1$R-rkwf%m%B-(ctK8+4Sn^%*C1Y-wqsr%eNg11%$De&&07q+%1>-" + \
      "+mCl2%)V#w%#y:[,?t*D$64`9.U+{`-SBX-+gi/o)0B$q#V$tW+#lmM)';EH" + \
-     "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiKB";
+     "%yFPZ/Gy(~,dl@h)A&ju-Co2,-du++)[Awk&wE}p*H;._.[]4W+Eb7K#iiK?";
 
 
 in_size   = 5
@@ -66,11 +66,10 @@ for i in range (0, len (pi), in_size):
 sys . stdout . write ("\n")
 
 #
-#  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER  FODDER
-#  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER  FODDER
-#  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER  FODDER
-#  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER  FODDER?
-#  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER  FODDER
-#  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER  FODDER
-#  FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER  FODDER!
+# FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER FODDER FODDER
+# FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER FODDER!!
+# FODDER FODDER FODDER FODDER  FODDER FODDER FODDER FODDER FODDER!!
 #
diff --git a/challenge-004/abigail/python/ch-2.py b/challenge-004/abigail/python/ch-2.py
index 4e94f7fe7d..26dd33b60f 100644
--- a/challenge-004/abigail/python/ch-2.py
+++ b/challenge-004/abigail/python/ch-2.py
@