#include<stdio.h>
#include<conio.h>

void main(void)


{
int num1,num2,sum=0,modulo=0;
clrscr();

printf("insert first number:");
scanf("%d",&num1);
printf("insert second number:");
scanf("%d",&num2);

	while(sum<=num1)
	{
		sum=sum+num2;

	}
	sum=sum-num2;
	modulo=num1-sum;

printf("%d modulo %d = %d",num1,num2,modulo);
getch();
}