#include <stdio.h>

int main()

{

? ? int x,y;

? ? x = 10;

? ? y = -3;

? ? printf("x+y=%d\n", x+y);??

? ? printf("x-y=%d\n", x-y);

? ? printf("x*y=%d\n", x*y);

? ? printf("x/y=%d\n", x/y);

? ? printf("x%y=%d\n", x%y);??

????//printf("x%'\'y=%d\n", x%y);??

? ? return 0;? ??

}