#include <iostream>
#include <string>
using namespace std;

int main() {
  int hall[] = {1, 0, 0, 0, 0, 0, 1, 0, 2, 1};

  string s;
  cin >> s;

  long cnt = 1;
  for (long i = 0; i < s.size(); i++) {
    cnt += 2;
    cnt += hall[s[i] - '0'];
  }

  cout << cnt << endl;
  return 0;
}