#define _USE_MATH_DEFINES
#include <algorithm>
#include <cstdio>
#include <functional>
#include <iostream>
#include <cfloat>
#include <climits>
#include <cstring>
#include <cmath>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <time.h>
#include <vector>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> i_i;
typedef pair<ll, int> ll_i;
typedef pair<double, int> d_i;
typedef pair<ll, ll> ll_ll;
typedef pair<double, double> d_d;
struct edge { int u, v; ll w; };

ll MOD = 1000000007;
ll _MOD = 1000000009;
double EPS = 1e-10;

int a[] = {1, 2, 3, 4, 5, 6, 20, 50, 100, 1000};
double b[] = {1.0000000000000000,
1.0833333333333333,
1.2569444444444444,
1.5353009259259260,
1.6915991512345676,
2.0513639724794235,
5.7894594000345325,
13.789629635263326,
27.122962962962941,
267.12296296296188};

int main() {
	int T; cin >> T;
	while (T--) {
		int N; cin >> N;
		double ans = 0;
		while (N > 0)
			for (int i = 9; i >= 0; i--)
				if (a[i] <= N) {
					ans += b[i];
					N -= a[i];
				}
		printf("%.10f\n", ans);
	}
}