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#include <iostream>

using namespace std;

int count_letters_0[300];
int count_letters_1[300];

void calculate_count(const string& s1, const string& s2, int n) {
  for (int i = 0; i < n; i++) {
    if (i % 2 == 0) {
      count_letters_0[s1[i]]++;
      count_letters_0[s2[i]]--;
    } else {
      count_letters_1[s1[i]]++;
      count_letters_1[s2[i]]--;
    }
  }
}

bool check_count() {
  for (int i = 'a'; i <= 'z'; i++) {
    if (count_letters_0[i] != 0 || count_letters_1[i] != 0) {
      return false;
    }
  }

  return true;
}

int main() {
  int n;
  cin >> n;

  string s1, s2;
  cin >> s1;
  cin >> s2;

  calculate_count(s1, s2, n);

  if (check_count()) {
    cout << "TAK";
  } else {
    cout << "NIE";
  }

  return 0;
}