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#include <iostream>

int counts[5][3];

int main() {
  std::ios_base::sync_with_stdio(false);

  int n;
  std::cin >> n;
  for (int i = 0; i < n; ++i) {
    int number;
    char type;

    std::cin >> number >> type;

    if (type == 'A') {
      counts[number - 1][0] += 1;
    } else if (type == 'B') {
      counts[number - 1][1] += 1;
    } else if (type == 'C') {
      counts[number - 1][2] += 1;
    }
  }

  for (int i = 0; i < 4; ++i) {
    for (int j = 0; j < 3; ++j) {
      if (counts[i][j] == 0) {
        std::cout << "NIE" << std::endl;
        return 0;
      }
    }
  }

  for (int j = 0; j < 3; ++j) {
    if (counts[4][j] < 2) {
      std::cout << "NIE" << std::endl;
      return 0;
    }
  }
  
  std::cout << "TAK" << std::endl;
  return 0;
}