View Code of Problem 3495

#include <stdio.h>
#include <string.h>
#include<math.h>
int mod(int n,int m){
	return n%m;
}
int main(){
	int a,b;
	while(scanf("%d%d",&a,&b)!=EOF){
		printf("%d\n",mod(a,b) );
	}
	
	return 0;
}