#include <stdio.h>
#include <math.h>
int main(void){
    long float arr[65536];
    int i = 0;
    do {
    if (scanf("%lf",&arr[i])==EOF)
        break;
    i++;
    }while(i<65536);
    for( --i; i >= 0; i--)
        printf("%.4lf\n",sqrt(arr[i]));
    return 0 ;
}

zero blank zero blank...
it is one figure per two bytes
thereby 256*2^10 / 2 = 131072
131072 >> 0x10000