#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, a, b;
  cin >> n >> a >> b;
  int final = log(n + 1) / log(2);
  int temp = final;
  int l = 1, r = n;
  while (1) {
    int mid = (l + r) / 2;
    if ((a > mid && b <= mid) || (a <= mid && b > mid)) {
      break;
    } else if (a > mid && b > mid) {
      l = mid;
    } else {
      r = mid;
    }
    temp--;
  }
  if (temp == final)
    cout << "Final!" << endl;
  else
    cout << temp << endl;
  return 0;
}
