#include <bits/stdc++.h>
using namespace std;
  
int main(){
    int arr[1000],n,i,a = 0,b = 0,c = 0,d = 0;
    cin>>n;
    for(i = 0;i < n;i++){
        cin>>arr[i];
        if(arr[i] <= 18){
            a++;
        }else if(arr[i] <= 35){
            b++;
        }else if(arr[i] <= 60){
            c++;
        }else{
            d++;
        }
    }
      
    cout<<a<<" "<<fixed<<setprecision(2)<<a*100.0/n<<"%"<<endl;
    cout<<b<<" "<<fixed<<setprecision(2)<<b*100.0/n<<"%"<<endl;
    cout<<c<<" "<<fixed<<setprecision(2)<<c*100.0/n<<"%"<<endl;
    cout<<d<<" "<<fixed<<setprecision(2)<<d*100.0/n<<"%"<<endl;
      
}
/**************************************************************
	Problem: 1426
	User: yangjunwen
	Language: C
	Result: Compile Error
****************************************************************/