#include <bits/stdc++.h>
using namespace std;
unsigned short log2(unsigned short x) {
  unsigned short log = 0;
  while (x > 1) {
    log++;
    x /= 2;
  }
  return log;
}
int main() {
  unsigned short a, b, n, r;
  cin >> n >> a >> b;
  a -= 1;
  b -= 1;
  n /= 2;
  if (a / n != b / n)
    cout << "Final!" << endl;
  else {
    r = log2(n);
    n /= 2;
    while (a / n == b / n) {
      n /= 2;
      r -= 1;
    }
    cout << r << endl;
  }
  return 0;
}
