#include <stdio.h>
#include <math.h>

int main(void)
{
    long long int number;
    long long int res;
    
    scanf("%d\n",&number);
   
    res = pow(2,32.0) - number;

    if(number < pow(2,31.0))
    {
        printf("%d\n",number);
    }

    else
    {
        printf("x%d\n",res);
    }

    return 0;
}