「CFgym100514R」6227020800

2014年11月2日1,8950

You are given an encrypted string, encrypted using a certain algorithm.Decrypt it !

Input

The first and single line of input contains a string s, which each of it’s characters is a lower case English letter. (1 ≤ |s| ≤ 105)

Output

Print the original string.

Sample test(s)
input

output

input

output

input

output

题解

恺撒密码。。。

 

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