#include <stdio.h>

int main(void) {
	int a, b, keisan;
	
	scanf("%d %d %d",&a,&b,&keisan);
	
	switch(keisan){
		case 1:
			printf("%d+%d=%d",a,b,a+b);
			break;
		case 2:
			printf("%d-%d=%d",a,b,a-b);
			break;
		case 3:
			printf("%d×%d=%d",a,b,a*b);
			break;
		case 4:
			if(a%b==0){
				printf("%d÷%d=%d",a,b,a/b);
			}
			else{
				printf("%d÷%d=%d余り%d",a,b,a/b,a%b);
			}
			break;
		default:
			printf("不正な入力です");
			break;
	}
	return 0;
}