#include <stdio.h>
void cal(int x,int y,int *sum,int *diff,int *mul,int *mod)
{
*sum=x+y;
*diff=x-y;
*mul=x*y;
*mod=x/y;
}
int main(void) {
int x,y;
int sum,diff,mul,mod;
cal(x,y,&sum,&diff,&mul,&mod);
if(0>diff){
diff=diff*-1;
}
return 0;
}
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