call me maby solution

call-me-maybe/call_me_maybe.py

@@ -0,0 +1,27 @@
+import sys
+
+mebi_mapping = {
+    0: '0',
+    1: '1',
+    2: 'ABC',
+    3: 'DEF',
+    4: 'GHI',
+    5: 'JKL',
+    6: 'MNO',
+    7: 'PQRS',
+    8: 'TUV',
+    9: 'WXYZ',
+}
+
+lookup = {}
+
+for k, v in mebi_mapping.iteritems():
+    for c in v:
+        lookup[c.lower()] = str(k)
+    lookup[str(k)] = str(k)
+
+for line in sys.stdin:
+    number = ''
+    for c in line.strip():
+        number += lookup[c.lower()]
+    print number

call-me-maybe/stdin1.txt

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+5551234
+GOPANDA
+MebiPenny2012