O. 0x
time limit per test
1 second
memory limit per test
256 megabytes
input
stdin
output
stdout

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 an English letter or a digit or  +  or  =  or  / . (1 ≤ |s| ≤ 105)

Output

Print the original string.

Examples
Input
Y2hhcnplaA==
Output
charzeh
Input
eW91c2VmaQ==
Output
yousefi
Input
bW10
Output
mmt