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//#define _CRT_SECURE_NO_WARNINGS

#include <iostream>
//#include <fstream>
using namespace std;
char c;
unsigned long long n,p, l1, hp, ha1, hb1, th1=10000000000000079;
//fstream plik;
int main()
{
	ios_base::sync_with_stdio(0);
	//plik.open("palindrom.txt");
	scanf("%ulld", &n);
	//plik >> n;
	hp = 1;
	p = 29;
	ha1 = 0;
	hb1 = 0;
	scanf("%c", &c);
	while (scanf("%c", &c) /*plik >> c*/)
	{
		if ((int)c == 10)break;
		l1=(int)c-96;
		ha1 += hp * c;
		hb1 *= p;
		hb1 += c;
		hp *= p;
		hp %= th1;
		ha1 %= th1;
		hb1 %= th1;
	}
	if (ha1 == hb1)printf("TAK\n");
	else printf("NIE\n");
	//plik.close();
	//system("PAUSE");
}