reverse_root.cpp

#include <iostream>
#include <vector>
#include <cmath>
#include <iomanip>

using namespace std;

int main(){
	vector<double> v;
	double n;
	while(cin>>n) v.push_back(n);
	for(int i=v.size()-1; i>=0; i--)
		cout<<setprecision(4)<<fixed<<sqrt(v[i])<<endl;
	return 0;
}