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#include<bits/stdc++.h>
#define ull unsigned long long
#define pb push_back
#define MP make_pair

using namespace std;

const ull MOD_1 = 1e9 + 7;
const ull MOD_2 = 1e9 + 9;

const ull p_1 = 137;
const ull p_2 = 1009;

ull pot(ull num, ull pow, ull MOD){
    if(pow == 0) return 1;
    ull aux = pot(num, pow/2, MOD);
    if(pow % 2 == 0) return (aux * aux) % MOD;
    return (aux * aux * num) % MOD;
}

int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);

    ull h_1_b = 0, h_1_e = 0, h_2_b = 0, h_2_e = 0;

    ull n;
    cin >> n;
    char z;
    ull ob_1 = 1, ob_2 = 1;
    while(cin >> z){
        ull w = z;
        h_1_b += (w * ob_1) % MOD_1;
        ///cout << "Dodaje do h_1_b " << w << " * " << pot(p_1, n, MOD_1) << endl;
        h_2_b += (w * ob_2) % MOD_2;
        h_1_b %= MOD_1;
        h_2_b %= MOD_2;
        h_1_e = (h_1_e * p_1 + w) % MOD_1;
        h_2_e = (h_2_e * p_2 + w) % MOD_2;
        ob_1 = (ob_1 * p_1) % MOD_1;
        ob_2 = (ob_2 * p_2) % MOD_2;
        //cout << h_1_b << " vs " << h_1_e << endl;
        //cout << h_2_b << " vs " << h_2_e << endl << endl;
    }
    if(h_1_b == h_1_e && h_2_b == h_2_e) cout << "TAK";
    else cout << "NIE";
	return 0;
}