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#include <cstdio>
#include <cstdlib>
#include <string>

#define NO_HASHES 5

int main() {
  int n;
  scanf("%d", &n);
  getchar();

  const unsigned long long P[NO_HASHES] = {37, 30029, 655360001, 1000000009, 909090909090909091LL};
  unsigned long long front[NO_HASHES] = {0}, back[NO_HASHES] = {0};
  unsigned long long p[NO_HASHES];

  for (int i = 0; i < NO_HASHES; i++) {
    p[i] = 1;
  }

  while (1) {
    char c = getchar();
    if (!islower(c)) {
      break;
    }

    for (int j = 0; j < NO_HASHES; j++) {
      front[j] *= P[j];
      front[j] += c;

      back[j] += (c * p[j]);
      p[j] *= P[j];
    }
  }

  bool equal = true;
  for (int i = 0; i < NO_HASHES; i++) {
    if (front[i] != back[i]) {
      equal = false;
      break;
    }
  }

  printf("%s\n", equal ? "TAK" : "NIE");

  return 0;
}