Initial data commit

Task/Find-the-missing-permutation/Python/find-the-missing-permutation-5.py

@@ -0,0 +1,23 @@
+'''Find the missing permutation'''
+
+from functools import reduce
+from operator import xor
+
+
+print(''.join([
+    chr(i) for i in reduce(
+        lambda a, s: map(
+            xor,
+            a,
+            [ord(c) for c in list(s)]
+        ), [
+            'ABCD', 'CABD', 'ACDB', 'DACB',
+            'BCDA', 'ACBD', 'ADCB', 'CDAB',
+            'DABC', 'BCAD', 'CADB', 'CDBA',
+            'CBAD', 'ABDC', 'ADBC', 'BDCA',
+            'DCBA', 'BACD', 'BADC', 'BDAC',
+            'CBDA', 'DBCA', 'DCAB'
+        ],
+        [0, 0, 0, 0]
+    )
+]))