#include<bits/stdc++.h>
using namespace std;
double n;
int a[105];
double q,w,e,r;

int main(){
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>a[i];
		if(0<=a[i]&&a[i]<=18) q++;
		if(19<=a[i]&&a[i]<=35) w++;
		if(36<=a[i]&&a[i]<=60) e++;
		if(a[i]>=61) r++;
	}
	q=q/n*100;
	w=w/n*100;
	e=e/n*100;
	r=r/n*100;
	cout<<fixed<<setprecision(2)<<q<<"%"<<endl;
	cout<<fixed<<setprecision(2)<<w<<"%"<<endl;
	cout<<fixed<<setprecision(2)<<e<<"%"<<endl;
	cout<<fixed<<setprecision(2)<<r<<"%"<<endl;
	return 0;
}

#include <bits/stdc++.h>
using namespace std;
int r[4],n,age; 
int main(){
    cin>>n;
    for(int i=0;i<n;i++){
        cin>>age;
        if(age>=0&&age<=18) r[0]++;
        else if (age>=19&&age<=35) r[1]++;
        else if (age>=36&&age<=60) r[2]++;
        else r[3]++;
    }
    for(int i=0;i<4;i++) cout<<fixed<<setprecision(2)<<(double)r[i]/n*100<<'%'<<endl;
    return 0;
}

#include <bits/stdc++.h>
using namespace std;
int r[4]; 
int main(){
    int n , age;
    cin >> n;
    for(int i = 0; i < n;i++){
        cin >> age;
        if(age >= 0 && age <= 18)
            r[0]++;
        else if (age >= 19 && age <= 35)
            r[1]++;
        else if (age >= 36 && age <= 60)
            r[2]++;
        else
            r[3]++;
    }
    for(int i = 0; i < 4; ++i)
        cout << fixed << setprecision(2) << (double)r[i] / n * 100 << '%' << endl;
    return 0;
}

#include<bits/stdc++.h> using namespace std;

int main(){ double a,b,c1=0,c2=0,c3=0,c4=0; double g1,g2,g3,g4; cin>>a; for(int i=1;i<=a;i++){ cin>>b; if(b<=18){ c1++; }if(b>=19&&b<=35){ c2++; }if(b>=36&&b<=60){ c3++; }else if(b>=61){ c4++; } } g1=c1/a100; g2=c2/a100; g3=c3/a100; g4=c4/a100; printf("%.2f",g1); cout<<"%"<<endl; printf("%.2f",g2); cout<<"%"<<endl; printf("%.2f",g3); cout<<"%"<<endl; printf("%.2f",g4); cout<<"%"<<endl; }//0-18、19-35、36-60、61

#include<bits/stdc++.h>

using namespace std; int main(){ int n; double sum0=0,sum1=0,sum2=0,sum3=0;

cin>>n;
const int N=n;
int a[N];

for(int i=0;i<N;i++){
	cin>>a[i];

} for(int k=0;k<N;k++){ if(a[k]>=0&&a[k]<=18){ sum0+=1; } else if(a[k]>=19&&a[k]<=35){ sum1+=1; } else if(a[k]>=36&&a[k]<=60){ sum2+=1; } else{ sum3+=1; } } cout<<fixed<<setprecision(2)<<sum0/n100<<"%"<<endl;; cout<<fixed<<setprecision(2)<<sum1/n100<<"%"<<endl;; cout<<fixed<<setprecision(2)<<sum2/n100<<"%"<<endl;; cout<<fixed<<setprecision(2)<<sum3/n100<<"%"<<endl;;

return 0;

}