#include <stdio.h>

void cal(int x, int y, int *add, int *def);

int main(void) 
{
	
	int a,b,n1,n2;
	printf("n1 : \n");scanf("%d",&n1);
		printf("n2 : \n");scanf("%d",&n2);
		 
		 cal(n1,n2,&a,&b);
		 
	printf("abb = %d def = %d",a,b);

	return 0;
}

void cal(int x, int y, int *add, int *def)
{
	*add=x+y;
	*def=x-y;
}