#include <stdio.h>
int main()
{
    int 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); 
    return 0;   
}

======================

#include <stdio.h>
int main()
{
    int x,y;
    x = 10;
    y = -3;
    printf("x+y=%d\n",7     ); 
    printf("x-y=%d\n", 13    );
    printf("x*y=%d\n", -30    );
    printf("x/y=%d\n", -3    );
    printf("x%y=%d\n", 1    ); 
    return 0;   
}

======================