#include <iostream>
#include <vector>
#include <iomanip>
#include <cmath>
using namespace std;

int main (){
    double Input=0 ;
    double number[] ;
    int counter=0;

    while ( cin >> Input && Input != EOF){
        number[counter] = Input;
        cout << number[counter];
        counter++ ;
    }

    for (int i=counter ; i>0; i--){
        cout << setprecision(4) << sqrt (number[counter]) << endl;
    }
}