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#include <bits/stdc++.h>
using namespace std;
#define e1 first
#define e2 second
#define pb push_back
#define mp make_pair
#define boost ios_base::sync_with_stdio(false)
#define eb emplace_back
#define OUT(x) {cout << x; exit(0); }
#define scanf(...) scanf(__VA_ARGS__)?:0
#define FOR(i, a, b) for (int i=(a); i<=(b); ++i)
typedef long long ll;
typedef unsigned long long ull;
typedef pair <int, int> PII;
typedef pair <ll, ll> PLL;
typedef pair <PLL, PLL> PP;
typedef unsigned int ui;
const int mod = 1e9+696969;
const int inf = 1e9+9;
const ll INF = 1e18;
const ll P = 31;
ull P2 = 31;
ll P3 = 29;

int LEN = 20000000;
int random(int a, int b ){
	return rand()%(b-a+1) + a;
}

int main()
{
	int mod2 = random(inf - 100, inf + 100);
	srand(time(0));
	int xd;
	scanf("%d\n", &xd);
	xd = 0;
	ll hash1 = 0, rev1 = 0;
	ull hash2 = 0, rev2 = 0;
	ll hash3 = 0, rev3 = 0;
	ull pot = 1, pot2 = 1, pot3 = 1;
	int i = 1;
	while (1) {
		char zn;
		zn = getchar_unlocked();
		//if (i > LEN) zn = '\n';
		//else zn = 'a';
		//++i;
		if (zn < 'a' || zn > 'z') {
			if (hash1 == rev1 && hash2 == rev2 && hash3 == rev3) OUT("TAK");
			OUT("NIE");
		}
		
		ull liczba = zn - 'a' + 1;
		hash1 = (P * hash1 + liczba) % mod;
		hash2 = (P2 * hash2 + liczba);
		hash3 = (P3 * hash3 + liczba) % mod2;
		//to sa hasze od przodu
		
		rev1 = (rev1 + pot * liczba) % mod;
		rev2 = (rev2 + pot2 * liczba);
		rev3 = (rev3 + pot3 * liczba) % mod2;
		
		pot = P * pot % mod;
		pot2 = P2 * pot2;
		pot3 = P3 * pot3 % mod2;
	}
}