Add Basic, C, C++, Forth, Lua and Python to challenge 003

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diff --git a/challenge-003/paulo-custodio/python/ch-2.py b/challenge-003/paulo-custodio/python/ch-2.py
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+++ b/challenge-003/paulo-custodio/python/ch-2.py
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+#!/usr/bin/env python
+
+# Challenge 003
+#
+# Challenge #2
+# Create a script that generates Pascal Triangle. Accept number of rows from
+# the command line. The Pascal Triangle should have at least 3 rows. For more
+# information about Pascal Triangle, check this wikipedia page.
+
+import sys
+
+def draw_pascal(rows):
+    data = [1]
+    for row in range(1,rows+1):
+        # print current row
+        print(" "*(rows-row) + " ".join([str(x) for x in data]))
+
+        # compute next row
+        nxt = [1]
+        for col in range(0, len(data)-1):
+            nxt.append(data[col] + data[col+1])
+        nxt.append(1)
+        data = nxt
+
+# main
+draw_pascal(int(sys.argv[1]))