#include <bits/stdc++.h>
using namespace std;
long long read() {
  long long f = 1, w = 0;
  char c = getchar();
  while (c > '9' || c < '0') {
    c = getchar();
    if (c == '-') f = -1;
  }
  while (c <= '9' && c >= '0') {
    w = (w << 3) + (w << 1) + c - '0';
    c = getchar();
  }
  return w * f;
}
int x, y;
bool Ciel() {
  if (x >= 2) {
    if (y >= 2) {
      x -= 2, y -= 2;
      return 1;
    } else {
      cout << "Hanako" << endl;
      return 0;
    }
  } else if (x >= 1) {
    if (y >= 12) {
      x -= 1, y -= 12;
      return 1;
    } else {
      cout << "Hanako" << endl;
      return 0;
    }
  } else {
    if (y >= 22) {
      y -= 22;
      return 1;
    } else {
      cout << "Hanako" << endl;
      return 0;
    }
  }
}
bool Hanako() {
  if (y >= 22) {
    y -= 22;
    return 1;
  } else if (y >= 12) {
    if (x >= 1) {
      x -= 1, y -= 12;
      return 1;
    } else {
      cout << "Ciel" << endl;
      return 0;
    }
  } else if (y >= 2) {
    if (x >= 2) {
      x -= 2, y -= 2;
      return 1;
    } else {
      cout << "Ciel" << endl;
      return 0;
    }
  } else {
    cout << "Ciel" << endl;
    return 0;
  }
}
int main() {
  ios::sync_with_stdio(0);
  x = read(), y = read();
  bool Ans = 1;
  while (1) {
    if (Ans == 1) {
      Ans = Ciel();
    } else {
      return 0;
    }
    if (Ans == 1) {
      Ans = Hanako();
    } else {
      return 0;
    }
  }
  return 0;
}
