#include <iostream>
#include <string>
#include <cmath>

using namespace std;

int main() {
    int N;
    double result;
    
    cin >> N;
    for(int i = 0; i < N; i++){
    	int x_i;
    	cin >> x_i;
    	
    	result += sqrt(x_i);
    	cout << result;
    }
    
    return 0;
}