Hamming Distance
Time limit: 2.0 sec
Memory limit: 256 MB
Problem Statement
Given two strings of same length \(S\) and \(T\). Find their hamming distance
## Input Format
In first line of input is string \(S\)
In second line of input is string \(T\)
## Output Format
Print answer.
## Examples
#### Input
abcabc
abcbca
#### Output
3