#include <bits/stdc++.h> using namespace std; int a[121]; int main(){ int n, qingshaonian = 0, qingnian = 0, zhongnian = 0, laonian = 0; cin >> n; for(int i = 1; i <= n; i++){ cin >> a[i]; } for(int i = 1; i <= n; i++){ if(a[i] >= 0 && a[i] <= 18){ qingshaonian ++; }else if(a[i] >= 19 && a[i] <= 35){ qingnian ++; }else if(a[i] >= 36 && a[i] <= 60){ zhongnian ++; }else if(a[i] >= 61){ laonian ++; } } printf ("%.2lf", qingshaonian * 1.0 / 10 * 100); cout << "%" << endl; printf ("%.2lf", qingnian * 1.0 / 10 * 100); cout << "%" << endl; printf ("%.2lf", zhongnian * 1.0 / 10 * 100); cout << "%" << endl; printf ("%.2lf", laonian * 1.0 / 10 * 100); cout << "%"; return 0; }