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// Palindrom.cpp : Defines the entry point for the console application.
//

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
vector<ll> bases = {29,31};
constexpr ll mod = 1e9 + 7;
int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int a;
	cin >> a;
	vector<ll> hf(bases.size()), hb(bases.size()), highs(bases.size());
	for (int i = 0; i < bases.size(); i++) {
		highs[i] = 1;
	}
	char x;
	cin >> x;
	int xx = x - 'a';
	for (int i = 0; i < bases.size();i++) {
		hf[i] = (xx)%mod;
	}
	for (int i=0;i<bases.size();i++) {
		hb[i] = (xx * highs[i])%mod;
	}
	while (cin>>x) {
		xx = x - 'a';
		for (int i = 0; i < bases.size(); i++) {
			highs[i] = (highs[i] * bases[i]) % mod;
			hf[i] = (xx + (hf[i]*bases[i]) % mod) % mod;
			hb[i] = (hb[i] + (xx*highs[i]) % mod) % mod;
		}
	}
	bool chck = 1;
	for (int i = 0; i < bases.size(); i++) {
		if (hf[i] != hb[i]) chck = 0;
	}
	if (chck) {	
		cout << "TAK" << endl;
	}
	else {
		cout << "NIE" << endl;
	}
    return 0;
}