#include <stdio.h>

int main(void) {
	
	int a,b,c;
	
	scanf("%d %d %d",&a,&b,&c);

	switch(c)
{
	case 1:
	printf("%d+%d=%d\n",a,b,a+b);
	break;
	case 2:
	printf("%d-%d=%d\n",a,b,a-b);
	break;
	case 3:
	printf("%d*%d=%d\n",a,b,a*b);
	break;
	case 4:
	printf("%d÷%d=%d余り%d\n",a,b,a/b,a%b);
	break;
}
	return 0;
}