#include <bits/stdc++.h>
using namespace std;
int const N = 1000;
int main ()
{
	int n; cin >> n;
	int xiao = 0, zhong = 0, da = 0, lao = 0;
	int a[N];
	for (int i = 0; i <= n - 1; i++){
		cin >> a[i];
		if (0 <= a[i] && a[i] <= 18){
			xiao++;
		}
		if (19 <= a[i] && a[i] <= 35){
			zhong++;
		}
		if (36 <= a[i] && a[i] <= 60){
			da++;
		}
		if (60 <= a[i]){
			lao++;
		}
	}
	printf ("%.2f%%\n", xiao * 1.0 / n *100);
	printf ("%.2f%%\n", zhong * 1.0/ n * 100);
	printf ("%.2f%%\n", da * 1.0 / n * 100);
	printf ("%.2f%%\n", lao * 1.0/ n * 100);
}