#include<bits/stdc++.h>
using namespace std;
int main(){
    int a[5]={0},n,c;
	cin>>n;
	for(int i=1;i<=n;i++)
	{
		cin>>c;
		if(c<=18)        a[1]++;
		if(19<=c&&c<=35) a[2]++;
		if(36<=c&&c<=60) a[3]++;
		if(c>60)         a[4]++;
	}
	printf("%.2lf%%\n",double(a[1])/n*100);
	printf("%.2lf%%\n",double(a[2])/n*100);
	printf("%.2lf%%\n",double(a[3])/n*100);
	printf("%.2lf%%\n",double(a[4])/n*100);
 	return 0;
}

#include #include using namespace std;

int main() { int N; cin >> N;

int age;
int count1 = 0, count2 = 0, count3 = 0, count4 = 0;  // 分别对应四个年龄段

for (int i = 0; i < N; i++) {
    cin >> age;
    if (age >= 0 && age <= 18) {
        count1++;
    } else if (age >= 19 && age <= 35) {
        count2++;
    } else if (age >= 36 && age <= 60) {
        count3++;
    } else {
        count4++;
    }
}

cout << fixed << setprecision(2);
cout << (count1 * 100.0 / N) << "%" << endl;
cout << (count2 * 100.0 / N) << "%" << endl;
cout << (count3 * 100.0 / N) << "%" << endl;
cout << (count4 * 100.0 / N) << "%" << endl;

return 0;

}