#include <bits/stdc++.h>
using namespace std;
int main(int argc, char* argv[]) {
  unsigned x, y;
  cin >> x >> y;
  unsigned i;
  for (i = 0;; i++) {
    if (i % 2 == 0) {
      if ((x >= 2) && (y >= 2)) {
        x -= 2;
        y -= 2;
        continue;
      }
      if ((x == 1) && (y >= 12)) {
        x -= 1;
        y -= 12;
        continue;
      }
      if ((x == 0) && (y >= 22)) {
        y -= 22;
        continue;
      }
      break;
    } else {
      if ((y >= 22)) {
        y -= 22;
        continue;
      }
      if ((y >= 12) && (x >= 1)) {
        x--;
        y -= 12;
        continue;
      }
      if ((y >= 2) && (x >= 2)) {
        x -= 2;
        y -= 2;
        continue;
      }
      break;
    }
  }
  if (i % 2) {
    cout << "Ciel" << endl;
  } else {
    cout << "Hanako" << endl;
  }
  return 0;
}
