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#include <iostream>

const long long prime = 371424173;
const long long base = rand() % prime;

const long long prime2 = 798919897;
const long long base2 = rand() % prime2;

int main() {
	std::ios_base::sync_with_stdio(false);
	int n;
	std::cin >> n;

	long long hash = 0;
	long long rev_hash = 0;
	long long multiplier = 1;
	
	long long hash2 = 0;
	long long rev_hash2 = 0;
	long long multiplier2 = 1;

	char c;
	while (std::cin >> c) {
		hash += multiplier * c;
		hash %= prime;

		rev_hash *= base;
		rev_hash %= prime;
		rev_hash += c;

		multiplier *= base;
		multiplier %= prime;
		
		hash2 += multiplier2 * c;
		hash2 %= prime2;

		rev_hash2 *= base2;
		rev_hash2 %= prime2;
		rev_hash2 += c;

		multiplier2 *= base2;
		multiplier2 %= prime2;

	}
	
	rev_hash %= prime;
	rev_hash2 %= prime2;

	std::cout << (hash == rev_hash && hash2 == rev_hash2 ? "TAK\n" : "NIE\n");

	return 0;
}