ac

#include<iostream>
#include<cstdio>
using namespace std;
int main(){
    int n,x[110];
    double a=0,b=0,c=0,d=0;
    cin>>n;
    for(int i=0;i<n;i++){
        cin>>x[i];
        if(x[i]>=0&&x[i]<=18){
            a++;
        }else if(x[i]<=35){
            b++;
        }else if(x[i]<=60){
            c++;
        }else if(x[i]>=61){
            d++;
        }
    }
    printf("%.2f%%\n",a/n*100);
    printf("%.2f%%\n",b/n*100);
    printf("%.2f%%\n",c/n*100);
    printf("%.2f%%",d/n*100);
    return 0;
}