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//~ while (clock()<=69*CLOCKS_PER_SEC)
//~ #pragma comment(linker, "/stack:200000000")
//~ #pragma GCC optimize("O3")
//~ #pragma GCC optimize("Ofast")
//~ #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//~ #pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>

#define pb push_back
#define SZ(x) ((int)(x).size())
#define ALL(x) x.begin(),x.end()
#define all(x) x.begin(),x.end()
#define fi first
#define se second
#define _upgrade ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define erase_duplicates(x) sort(all(x)); (x).resize(distance((x).begin(), unique(all(x))));


using namespace std;

typedef long long LL;
typedef pair<int,int> PII;
typedef pair<LL,LL> PLL;
typedef vector<PII> VPII;
typedef vector<PLL> VPLL;
typedef vector<LL> VLL;
typedef vector<int> VI;
typedef vector<string> VS;
typedef vector<char> VC;
typedef long double LD;
typedef pair<LD,LD> PLD;
typedef vector<LD> VLD;
typedef vector<PLD> VPLD;

template<class TH> void _dbg(const char *sdbg, TH h){ cerr<<sdbg<<" = "<<h<<endl; }
template<class TH, class... TA> void _dbg(const char *sdbg, TH h, TA... a) {
  while(*sdbg!=',')cerr<<*sdbg++;
  cerr<<" = "<<h<<", "; _dbg(sdbg+1, a...);
}

#ifdef LOCAL
#define dbg(...) _dbg(#__VA_ARGS__, __VA_ARGS__)
#else
#define dbg(...)
#define cerr if(0)cout
#endif

const int maxn = (1e6)+7;
const int maxk = 20;
const int inf = (1e9)+7;
const LL LLinf = ((LL)1e18)+7LL;
const LD eps = 1e-9;
const LL mod = 1e9+7;

// ***************************** CODE ***************************** //

struct hasz
{
  LL jed = 0LL;
  LL dwa = 0LL;
  LL mod;
  LL pot = 1;
  LL skok;

  hasz(LL m, LL P)
  {
    mod = m;
    skok = P;
  }

  void add(int a)
  {
    jed = (jed * skok + a) % mod;
    dwa = (dwa + pot * a) % mod;
    pot = (pot * skok) % mod;
  }

  void rob()
  {
    jed = (((jed % mod) + mod) % mod);
    dwa = (((dwa % mod) + mod) % mod);
  }

};

int main()
{
	_upgrade
  int n;
  scanf("%d ", &n);
  char a;
  hasz cnt(1e9 + 7, 2137LL);
  hasz elo(1000000271LL, 29LL);
  while(scanf("%c", &a) > 0)
  {
    if(a < 'a' || a > 'z')
      break;
    a -= 'a';
    a++;
    cnt.add(a);
    elo.add(a);
  }
  cnt.rob();
  elo.rob();
  // dbg(cnt.jed, cnt.dwa);
  if(cnt.jed == cnt.dwa && elo.jed == elo.dwa)
    cout<<"TAK\n";
  else
    cout<<"NIE\n";
	return 0;
}