#include <algorithm> #include <vector> #include <cfloat> #include <string> #include <cmath> #include <set> #include <cstdlib> #include <map> #include <ctime> #include <iomanip> #include <functional> #include <deque> #include <iostream> #include <cstring> #include <queue> #include <cstdio> #include <stack> #include <climits> #include <sys/time.h> #include <cctype> using namespace std; typedef long long ll; int main() { int n; cin >> n; int c[n]; for (int i = 0; i < n; i++) { cin >> c[i]; } int sum = 0; for (int i = 0; i < n; i++) { sum += c[i]; } int ans = 0; for (int i = 0; i < n; i++) { if (c[i]*10 <= sum) { ans += 30; } } std::cout << ans << std::endl; }