1 files changed, 31 insertions, 0 deletions
diff --git a/challenge-275/zapwai/python/ch-2.py b/challenge-275/zapwai/python/ch-2.py
new file mode 100644
index 0000000000..c593ac08fb
--- /dev/null
+++ b/challenge-275/zapwai/python/ch-2.py
@@ -0,0 +1,31 @@
+def shifty(c, d):
+    alph = 'abcdefghijklmnopqrstuvwxyz'
+    ind = alph.index(c)
+    A = list(alph)
+    return A[d + ind]
+
+def proc(stringy):
+    print("Input: str =", stringy);
+    lets = []
+    puts = []
+    for i in range(len(stringy)):
+        if i % 2 == 0:
+            let = stringy[i:i+1]
+            lets.append(let)
+        else:
+            put = shifty(lets[-1], ord(stringy[i:i+1]) - 48)
+            puts.append(put)
+    print("Output: ", end='')
+    for j in range((len(stringy)//2) ):
+        print(lets[j], puts[j], end='', sep='') 
+    if (len(stringy)) % 2 == 1:
+        print(lets[-1], end='')
+    print("\n")
+
+stringy = 'a1c1e1'
+proc(stringy)
+stringy = 'a1b2c3d4'
+proc(stringy)
+stringy = 'b2b'
+proc(stringy)
+