#include <bits/stdc++.h>
using namespace std;
int main()
{
    double n;
    int e[104],a=0,b=0,c=0,d=0;
    cin >> n;
    for(int i=1;i<=n;i++)
    {
        cin >> e[i];
        if(e[i]>60)
        {
            d++;
        }
        else if(e[i]>35)
        {
            c++;
        }
        else if(e[i]>18)
        {
            b++;
        }
        else
        {
            a++;
        }
    }
    cout << a << " " << fixed << setprecision(2) << a/n*100;
    cout << "%" << endl;
    cout << b << " " << fixed << setprecision(2) << b/n*100;
    cout << "%" << endl;
    cout << c << " " << fixed << setprecision(2) << c/n*100;
    cout << "%" << endl;
    cout << d << " " << fixed << setprecision(2) << d/n*100;
    cout << "%" << endl;
}

#include <cstdio>
using namespace std;
int main(){
    int a=0,b=0,c=0,d=0,n,x;
    scanf("%d",&n);
    for(int i=1;i<=n;i++){
        scanf("%d",&x);
        if(0<=x&&x<=18)a++;
        else if(19<=x&&x<=35)b++;
        else if(36<=x&&x<=60)c++;
        else d++;
    }
    printf("%d %.2lf%%\n%d %.2lf%%\n%d %.2lf%%\n%d %.2lf%%\n",a,100.0*a/n,b,100.0*b/n,c,100.0*c/n,d,100.0*d/n);
    return 0;
}