#include <bits/stdc++.h>
using namespace std;
int main(){
	int n,a;
	double s1=0,s2=0,s3=0,s4=0;
	cin>>n;
	for(int i=0;i<n;i++){
	    cin>>a;
	    if(a<=18) s1++;
	    else if(a>=19 and a<=35) s2++;
	    else if(a>=36 and a<=60) s3++;
	    else if(a>=61) s4++;
	}
	printf("%.2lf",s1*100.0/n);
	cout<<"%"<<endl;
	printf("%.2lf",s2*100.0/n);
	cout<<"%"<<endl;
	printf("%.2lf",s3*100.0/n);
	cout<<"%"<<endl;
	printf("%.2lf",s4*100.0/n);
	cout<<"%";
    return 0;
}

已AC