Find Remainder | Problem Code: FLOW002

Write a program to find the remainder when an integer A is divided by an integer B.

Input

The first line contains an integer T, the total number of test cases. Then T lines follow, each line contains two Integers A and B.

Output

For each test case, find the remainder when A is divided by B, and display it in a new line.

Constraints

1 ≤ T ≤ 1000
1 ≤ A,B ≤ 10000

Example

Input
3 
1 2
100 200
40 15

Output
1
100
10

Solution

Language – C++

#include<iostream>
using namespace std;
int main() {
   int T;
   cin>>T;
   for(int i=0;i<T;i++) {
      int A,B;
      cin>>A>>B;
      cout<<A%B<<endl;
      }
   }