#include <bits/stdc++.h>
using namespace std;
int main() {
  vector<int> vec(5), amari(5), x(5);
  int sum = 0;
  for (int i = 0; i < 5; i++) {
    cin >> vec.at(i);
    amari.at(i) = vec.at(i) % 10;
    x.at(i) = vec.at(i) - amari.at(i);
    sum += x.at(i);
  }
  sort(amari.begin(), amari.end());
  sum += amari.at(0);
  cout << sum << endl;
}
