#include<stdio.h> #include <vector> #include <list> #include <map> #include <set> #include <queue> #include <stack> #include <algorithm> #include <sstream> #include <iostream> #include <string> #include <stdio.h> using namespace std; int main() { int N; long long C[105], sum = 0;; cin >> N; for (int i = 0; i < N; i++) { cin >> C[i]; sum += C[i]; } long long ans = 0; for (int i = 0; i < N; i++) { if (C[i]*10 <= sum) { ans += 30; } } cout << ans << endl; return 0; }