Score : $100$ points

Problem Statement

You are given a string $s$ consisting of two kinds of characters, 0 and 1. Print the string obtained by replacing 0 with 1 and 1 with 0 in $s$.

Constraints

• The length of $s$ is between $1$ and $10$, inclusive.
• $s$ consists of two kinds of characters, 0 and 1.

Input

The input is given from Standard Input in the following format:

$s$

Output

Print the answer in a single line.

01

10

The $1$-st character of $s$ is 1, so the $1$-st character to print is 0. The $2$-nd character of $s$ is 0, so the $2$-nd character to print is 1.

1011

0100

100100001

011011110