#include <stdio.h>
#include<math.h>
void main()
{
float a[1024];
    int i=0,count=0;

    while(scanf("%f",&a[i]))
    {

        a[i]=sqrt((float)a[i]);

        count++;
        i++;
    }

        for (int i=count-1;i>0|i==0;i--)

            printf("\n%.4lf",a[i]);
}