#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
    int n,tmp,a1=0,a2=0,a3=0,a4=0;
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>tmp;
        if(tmp<=18)a1+=1;
        else if(19<=tmp&&tmp<=35)a2+=1;
        else if(36<=tmp&&tmp<=60)a3+=1;
        else if(tmp>=61)a4+=1;
    }
    cout<<fixed<<setprecision(2);
    cout<<a1*100.0/n<<'%'<<endl;
    cout<<a2*100.0/n<<'%'<<endl;
    cout<<a3*100.0/n<<'%'<<endl;
    cout<<a4*100.0/n<<'%'<<endl;
    return 0;
}