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#include <bits/stdc++.h>

using namespace std;

// 3B 4B {5B} 4C (5C) 3C 1A {5A} 3A {5A} 2C 1B 2A {5B} (5C) 2B 1C 4A

// 1A, 1B, 1C, 2A, 2B, 2C, 3A, 3B, 3C, 4A, 4B, 4C, 5AA, 5BB, 5CC

bool solution(map<char, map<char, int>> data) {
	for (auto &a : data) {
		for (auto &b : a.second) {
			if ((b.second <= 1) && (a.first == '5'))
				return false;	
		}
	}

	return true;
}

int main() {
	std::ios_base::sync_with_stdio(false);
	std::cin.tie(NULL);

	map<char, map<char, int>> ex;
	int n, i;
	string x;

	cin >> n;
	for (i = 0; i < n; ++i) {
		cin >> x;

		ex[(char)x[0]][(char)x[1]]++;
	}

	if (solution(ex)) {
		cout << "TAK" << "\n";
	} else {
		cout << "NIE" << "\n";
	}

	return 0;
}