#include <stdio.h>

void cal(int x, int y,int *add,int *sub);
int main(void) {
	// your code goes here
	int n1,n2,a,b;
	cal(n1,n2,&a,&b);
	printf("*add : %d, *sub : %d",a,b);
	return 0;
}
void cal(int x,int y,int *add,int *sub){
	*add=x+y;
	*sub=x-y;
}