#include <stdio.h>
#include <limits.h>
int add_ok( int x, int y ){
int sum = x+y;
printf("Sum is : %d\n", sum);
return (sum-x==y) && (sum-y==x);
}
int main()
{
if ( add_ok( INT_MAX, INT_MAX ) )
printf("It is ok\n");
else
printf("It is NOT ok\n");
return 0;
}