#include <bits/stdc++.h>
using namespace std;
int main() {
  long long n;
  scanf("%I64d", &n);
  int a[30], ans = 1e9;
  for (int i = 1;; i++) {
    a[i] = n % 10, n /= 10;
    if (n == 0) {
      n = i;
      break;
    }
  }
  int l = 0, r = 0, k = 0;
  for (int i = 1; i <= n; i++)
    if (a[i] == 0) {
      if (l == 0)
        l = i;
      else if (r == 0) {
        if (max(l, r) == n)
          for (int i = n - 1; i > 1; i++)
            if (a[i] != 0 && i != l && i != r) {
              l += n - i;
              break;
            }
        r = i, ans = min(ans, l + r - 3);
        break;
      }
    }
  l = r = k = 0;
  for (int i = 1; i <= n; i++)
    if (a[i] == 2 && r == 0)
      r = i;
    else if (a[i] == 5 && l == 0)
      l = i;
  if (l != 0 && r != 0) {
    if (max(l, r) == n)
      for (int i = n - 1; i > 1; i--)
        if (a[i] != 0 && i != l && i != r) {
          k = n - i - 1;
          if ((n == l && r == n - 1) || (n - 1 == l && r == n)) k = n - i - 2;
          break;
        }
    if (l > r) r++;
    ans = min(ans, l + r + k - 3);
  }
  l = r = k = 0;
  for (int i = 1; i <= n; i++)
    if (a[i] == 5 && r == 0)
      r = i;
    else if (a[i] == 0 && l == 0)
      l = i;
  if (l != 0 && r != 0) {
    if (max(l, r) == n)
      for (int i = n - 1; i > 1; i--)
        if (a[i] != 0 && i != l && i != r) {
          k = n - i - 1;
          if ((n == l && r == n - 1) || (n - 1 == l && r == n)) k = n - i - 2;
          break;
        }
    if (l > r) r++;
    ans = min(ans, l + r + k - 3);
  }
  l = r = k = 0;
  for (int i = 1; i <= n; i++)
    if (a[i] == 7 && r == 0)
      r = i;
    else if (a[i] == 5 && l == 0)
      l = i;
  if (l != 0 && r != 0) {
    if (max(l, r) == n)
      for (int i = n - 1; i > 1; i--)
        if (a[i] != 0 && i != l && i != r) {
          k = n - i - 1;
          if ((n == l && r == n - 1) || (n - 1 == l && r == n)) k = n - i - 2;
          break;
        }
    if (l > r) r++;
    ans = min(ans, l + r + k - 3);
  }
  if (ans == 1e9)
    printf("-1\n");
  else
    printf("%d\n", ans);
}
