#include <bits/stdc++.h>
using namespace std;
const long long INF = 0x3f3f3f3f;
string s;
long long f(char a, char b) {
  string st = s;
  long long cnt = 0;
  int flag1 = 0, flag2 = 0;
  for (int i = st.size() - 1; i >= 0; i--) {
    if (st[i] == b) {
      for (int j = i; j < st.size() - 1; j++) {
        swap(st[j], st[j + 1]);
        cnt++;
      }
      flag1 = 1;
      break;
    }
  }
  for (int i = st.size() - 2; i >= 0; i--) {
    if (st[i] == a) {
      for (int j = i; j < st.size() - 2; j++) {
        swap(st[j], st[j + 1]);
        cnt++;
      }
      flag2 = 1;
      break;
    }
  }
  if (!flag1 || !flag2) return INF;
  if (st[0] == '0') {
    for (int i = 1; i <= st.size() - 3; i++) {
      if (st[i] != '0') {
        cnt += i;
        break;
      }
    }
  }
  return cnt;
}
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cin >> s;
  long long minn = INF;
  minn = min(minn, f('0', '0'));
  minn = min(minn, f('2', '5'));
  minn = min(minn, f('5', '0'));
  minn = min(minn, f('7', '5'));
  if (minn == INF)
    cout << -1 << endl;
  else
    cout << minn << endl;
  return 0;
}
