「CFgym100514I」Peace of AmericanPie

2014年11月2日2,8230

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

Input

The first and only line of input contains a string s,each character of s is either 0 or 1 . (8 ≤ |s| ≤ 8 × 104)

Output

Print the original string.

Sample test(s)
input

output

input

output

input

output

题解

八个数字一组二进制

 

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