#include <bits/stdc++.h> using namespace std; int main() { double n, a = 0, b = 0, c = 0, d = 0; cin >> n; for(int i = 1; i <= n; ++ i) { int q; cin >> q; if (q < 19) a ++; else if (q < 36) b ++; else if (q < 61) c ++; else d ++; } cout << fixed << setprecision(2) << a / n * 100.0 << "%\n"; cout << fixed << setprecision(2) << b / n * 100.0 << "%\n"; cout << fixed << setprecision(2) << c / n * 100.0 << "%\n"; cout << fixed << setprecision(2) << d / n * 100.0 << "%\n"; return 0; }