#include <bits/stdc++.h>
#define rep(i, ss, ee) for (int i = ss; i < ee; ++i)
using namespace std;

void input(vector<int> &v) {
  string src, str;
  getline(cin, src);
  stringstream ss{src};
  while (getline(ss, str, ' ')) v.emplace_back(stoi(str));
}

int anotherFizzBuzz(int x) {
  if (x % 15 == 0) return 8;
  if (x % 3 == 0 and x % 5 != 0) return 4;
  if (x % 3 != 0 and x % 5 == 0) return 4;
  return log10(x) + 1;
}

void solve() {
  vector<int> v;
  input(v);
  int ans = 0;
  rep(i, 0, v.size()) ans += anotherFizzBuzz(v[i]);
  cout << ans << endl;
}

int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  solve();
}