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#include <bits/stdc++.h>
using namespace std;
const int MAXA = 1e9 + 7;
const int MAXB = 1e9 + 9;
const int base = 27;
typedef long long LL;
long long hashfa, hashea, hashfb, hasheb, basea, baseb;
int main()
{
  int n;
  char a;
  cin >> n;
  basea = baseb = 1;
  while(cin >> a){
    hashfa = ((LL)(hashfa*base)%MAXA + a - 'a' + 1)%MAXA;
    hashfb = ((LL)(hashfb*base)%MAXB + a - 'a' + 1)%MAXB;
    hashea = (hashea + (LL)(a - 'a' + 1)*basea)%MAXA;
    hasheb = (hasheb + (LL)(a - 'a' + 1)*baseb)%MAXB;
    basea = (LL)(basea * base)%MAXA;
    baseb = (LL)(baseb * base)%MAXB;
  }
  if(hashfa == hashea && hashfb == hasheb)
    cout << "TAK\n";
  else
    cout << "NIE\n";
  return 0;
}