#include <stdio.h>

int main() {
	int n;
	int a[4],t;
	scanf("%d",&n);
	for(int i=0;i<n;i++){
	scanf("%d",&t);
	if(t>=0&&t<=18)
		a[0]++;
	else if(t>=19&&t<=35)
		a[1]++;
	else if(t>=36&&t<=60)
		a[2]++;
	else if(t>=61)
		a[3]++;
	}
	
	printf("%.2f%%\n",(a[0]/n)*100.0);
	printf("%.2f%%\n",(a[1]/n)*100.0);
	printf("%.2f%%\n",(a[2]/n)*100.0);
	printf("%.2f%%\n",(a[3]/n)*100.0);
	return 0;
}