L. Key
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 !

Each character of the encrypted string has ASCII code between 0 and 255 inclusive.So you're given the ASCII code of each character.It's guaranteed that the original string is made of lower case English letters.

Input

The first line of input contains integer n, the size of the encrypted string. (7 ≤ n ≤ 105).

The second line contains n integers between 0 and 255 inclusive, speared by space.

Output

Print the original string.

Examples
Input
7
17 3 8 20 25 15 7
Output
charzeh
Input
7
11 4 28 21 6 12 6
Output
yousefi
Input
8
1 14 16 3 7 7 2 6
Output
seyedmmt