d3q3

#include <stdio.h>

int main()
{
    int x, y;
    scanf("%d %d", &x, &y);
    if (y==0)
    {
        printf("n/a\n");
        return 0;
    }
    printf("%d %d %d %d\n", x+y, x-y, x*y,x/y);
    return 0;
}
/* No type check */