#include<iostream>
#include<cstdio>
using namespace std;
int main(){
    int a[4]={0},n,nianling;
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>nianling;
		if(nianling<=18)a[0]++;
		if(19<=nianling&&nianling<=35)a[1]++;
		if(36<=nianling&&nianling<=60)a[2]++;
		if(nianling>60)a[3]++;
	}
	printf("%.2lf\n%.2lf\n%.2lf\n%.2lf\n",double(a[1])/n*100,double(a[2])/n*100,double(a[3])/n*100,double(a[4])/n*100);
 	return 0;
}