#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
#include <cmath>
#include <bitset>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <algorithm>
#include <complex>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <cassert>
#include <fstream>
#include <utility>
#include <functional>
#include <time.h>
#include <stack>
#include <array>
#include <list>
#define popcount __builtin_popcount
using namespace std;
typedef long long ll;
typedef pair<int, int> P;
int main()
{
    int n;
    scanf("%d", &n);
    long double ans=0, r=0;
    for(int i=0; i<n; i++){
        ll x;
        scanf("%lld", &x);
        long double a=sqrt((long double)x);
        long double t=ans+a+r;
        r=a+r-(t-ans);
        ans=t;
        printf("%.16Lg\n", ans);
    }
    return 0;
}