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//Michal Maras
//Who enters to my domain?
#define _USE_MATH_DEFINES
#define _CRT_SECURE_NO_WARNINGS
#include <unordered_map>
#include <unordered_set>
#include <functional>
#include <algorithm>
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <iomanip>
#include <sstream>
#include <string>
#include <bitset>
#include <vector>
#include <random>
#include <queue>
#include <deque>
#include <stack>
#include <cmath>
#include <ctime>
#include <list>
#include <set>
#include <map>
#include <assert.h>

#define BOOST ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define SIZE(x) (int)(x.size())
#define MP(x, y) make_pair(x, y)
#define PB(x) push_back(x)
#define FOR(i, a, b) for(int i = (a); i < (b); ++i)
#define ALL(a) (a).begin(), (a).end()

typedef long long LL;
typedef long double LD;
typedef unsigned long long ULL;
typedef unsigned int UINT;

#define INF 2000000007
#define LLINF 2000000000000000007

using namespace std;

template <typename t1, typename t2>
istream& operator>> (istream& in, pair<t1, t2> &p)
{
	in >> p.first >> p.second;

	return in;
}

template <typename t1, typename t2>
ostream& operator<< (ostream& out, pair<t1, t2> &p)
{
	out << p.first << " " << p.second;

	return out;
}

template <typename t>
ostream& operator<< (ostream& out, vector <t> &v)
{
	for (auto& i : v)
	{
		out << i << "\n";
	}

	return out;
}

/*template <typename T>
T GenRandom(T min, T max)
{
random_device rd;
mt19937 gen(rd());
uniform_int_distribution<T> dist(min, max);

return dist(gen);
}
*/

#define fin(s) freopen(s, "r", stdin)

// --------------- CODE -------------- //
const LL MOD[3] = { 999995803 , 999986303 ,1000004249};
const LL p = 29;

LL hash1[3];
LL hash2[3];

int main()
{
	BOOST;

	int useless;

	cin >> useless;

	char c;

	LL power[5] = { 1, 1, 1, 1, 1 };

	while (cin >> c)
	{
		FOR(i, 0, 3)
		{
			hash1[i] *= 29;
			hash1[i] += (c - 'a' + 1);
			hash1[i] %= MOD[i];

			hash2[i] = (hash2[i] + power[i] * (LL)(c - 'a' + 1)) % MOD[i];

			power[i] *= p;
			power[i] %= MOD[i];
		}
	}

	FOR(i, 0, 3)
	{
		if (hash1[i] != hash2[i])
		{
			cout << "NIE";
			return 0;
		}
	}

	cout << "TAK";

	return 0;
}