#include<stdio.h> //standard library function add
#include<math.h>

int main()//main function add
{
    int shonkha[1000], i, n; //shonkha array, i  n podshonkha, Z root
    double Z;
    scanf("%d",&n);

    for(i=0; i<=n; i++)
    {
        scanf("%d", &shonkha[i]);
    }

    for (i=0;i<=n;i++)
    {
        Z=sqrt(shonkha[i]);
        printf("%lf",Z);
    }
    return 0;    //return value
}