#include <bits/stdc++.h>
using namespace std;
int main() {
  long h = 0, t = 0;
  cin >> h >> t;
  bool isLost = false;
  while (1) {
    if (h >= 2 and t >= 2) {
      h -= 2;
      t -= 2;
    } else if (h >= 1 and t >= 12) {
      h -= 1;
      t -= 12;
    } else if (t >= 22)
      t -= 22;
    else {
      isLost = true;
      break;
    }
    if (t >= 22)
      t -= 22;
    else if (t >= 12 and h >= 1) {
      h -= 1;
      t -= 12;
    } else if (t >= 2 and h >= 2) {
      h -= 2;
      t -= 2;
    } else {
      isLost = false;
      break;
    }
  }
  cout << ((isLost) ? ("Hanako") : ("Ciel"));
  return 0;
}
