"""Given 2 strings, a and b, return a string of the form: shorter+reverse(longer)+shorter. In other words, the shortest list has to be put as prefix and as suffix of the reverse of the longest. Strings a and b may be the empty string, but not null. If a and b has the same length treat a as the longer producing b+reverse(a)+b""" def shorter_reverse_longer(a,b): if len(a)>len(b): print b + a[::-1] + b elif len(a)<len(b): print a + b[::-1] + a else: print b + a[::-1] + b shorter_reverse_longer("first","abcde")
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