Descr iption

编写一个C函数mod(int n, int m),实现取模运算

Input

输入包含多行数据

每行数据是两个整数a, b (1 <= a, b <= 32767)

数据以EOF结束

Output

于输入的每一行输出a b

Sample Input

5 3

100 2

Sample Output

2

0-Descr iption write a C function mod (int n, int m), to achieve the modulo operation　Input data input contains multiple lines of data in each row are two integers a, b (1 < = a, b < = 32767) data to the end EOF Output each line of output to input a　b Sample Input 5 3 100 2 Sample Output 2 0