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#include <iostream>

using namespace std;

int main() {
  int i, j, n;
  ios_base::sync_with_stdio(0);
  cin >> n;

  int grid[3][5];
  for (i = 0; i < 3; ++i) {
    for (j = 0; j < 5; ++j) {
      grid[i][j] = 0;
    }
  }

  int k;
  char c;
  for (i = 0; i < n; ++i) {
    cin >> k >> c;
    cin.get();
    grid[c - 'A'][k - 1] += 1;
  }

  bool ok = true;
  for (i = 0; i < 3; ++i) {
    for (j = 0; ok && (j < 4); ++j) {
      ok = ok && grid[i][j] >= 1;
    }
    ok = ok && (grid[i][4] >= 2);
  }

  if (ok)
    cout << "TAK" << endl;
  else
    cout << "NIE" << endl;

  return 0;
}