#include <stdio.h>
void cal(int x,int y,int *sum,int *diff,int *mul,int *mod);
int main(void) {
int a,b,sum,diff,mul,mod;
cal(a,b,&sum,&diff,&mul,&mod);
return 0;
}
void cal(int x,int y,int *sum,int *diff,int *mul,int *mod){
*sum = x + y;
*diff = x>y ? x-y:y-x;
*mul = x * y;
*mod = x % y;
}
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