#include <stdio.h>
 
void cal(int x, int y, int *sum, int *diff, int *mul, int *mod);
int abs(int a);
 
int main(void)
{
    int x,y,sum,diff,mul,mod;
    printf("x:");
    scanf("%d",&x);
    printf("y:");
    scanf("%d",&y);
 
    cal(x,y,&sum,&diff,&mul,&mod);
 
    printf("sum:%d,diff:%d,mul:%d,mod:%d\n",sum,diff,mul,mod);
	return 0;
}
 
void cal(int x, int y, int *sum, int *diff, int *mul, int *mod)
{
*sum=x+y;
*diff=abs(x-y);
*mul=x*y;
*mod=x/y;
}
int abs(int a)
{
if(a<0){
	return -a;
}
else{
return a;
}
}

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