#include<stdio.h>
#include<math.h>
void main()
{long a[i];
for(i=0;i<n;i++)
scanf("%lf",&a[i]);
printf("%6.4f\n%5.4f\n%13.4f\n%8.4f\n",sqrt(a[i]),sqrt(a[i+1]),sqrt(a[i+2]),sqrt(a[i+3]));
}