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#include <iostream>
using namespace std;

int c[26][2];


int main() {
  int n;
  string a, b;
  cin >> n >> a >> b;
  for (int i = 0; i < n; ++i) {
    ++c[a[i] - 'a'][i % 2];
    --c[b[i] - 'a'][i % 2];
  }
  for (int i = 0; i < 26; ++i) {
    for (int j = 0; j < 2; ++j) {
      if (c[i][j]) {
        puts("NIE");
        return 0;
      }
    }
  }
  puts("TAK");
  return 0;
}