#include <bits/stdc++.h> #define maxn 300000 using namespace std; typedef long long ll; int n,a[maxn],h1,h2,h3,h4; double l; int main(){ cin>>n; for(int i=1;i<=n;i++){ cin>>a[i]; if(a[i]<=18) h1++; else if(a[i]<=35) h2++; else if(a[i]<=60) h3++; else h4++; } printf("%.2lf%\n%.2lf%\n%.2lf%\n%.2lf%",h1100.0/n,h2100.0/n,h3100.0/n,h4100.0/n); }</u>**********