text: /**********************************************************************
   * author:      banbao                                                *
   * language:    c++/c                                                 *
   * link:        http://poj.org/problem?id=3980                        *
   **********************************************************************/
  
  /*
   * bbq:
  */
  
  #include <stdio.h>
  
  int main() {
      int a, b;
      while (scanf("%d%d", &a, &b) != EOF) printf("%d\n", a%b);
      return 0;
  }
  
  /*
  取模运算
  Time Limit: 1000MS      Memory Limit: 65536K
  Total Submissions: 13048        Accepted: 7674
  Description
  
  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
  Source
  */
  