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

int main()
{
    double n;

    scanf("%lf", &n);

    if (n >= 0)
    {
        printf("%lf\n", n * n);
        printf("%lf", sqrt(n));
    }
    else
    {
        printf("Input number again:\n");
        scanf("%lf",&n);
    }

}