Find Remainder | Problem Code: FLOW002 || Codechef Solution

 

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