#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int f(int x) {
  int res = 0;
  if (x % 15 == 0)
    res = 8;
  else if (x % 5 == 0)
    res = 4;
  else if (x % 3 == 0)
    res = 4;
  else
    res = to_string(x).size();
  return res;
}

int main() {
  int a, b, c, d, e;
  cin >> a >> b >> c >> d >> e;
  cout << f(a) + f(b) + f(c) + f(d) + f(e) << endl;
  return 0;
}