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#include <iostream>
#include <vector>

using namespace std;

struct __attribute__((packed)) eight {
    unsigned int a : 5;
    unsigned int b : 5;
    unsigned int c : 5;
    unsigned int d : 5;
    unsigned int e : 5;
    unsigned int f : 5;
    unsigned int g : 5;
    unsigned int h : 5;

    vector<uint> to_vec() { return {a, b, c, d, e, f, g, h}; }
    void from_vec(vector<uint>& vec) {
        a = vec[0];
        b = vec[1];
        c = vec[2];
        d = vec[3];
        e = vec[4];
        f = vec[5];
        g = vec[6];
        h = vec[7];
    }
} __attribute((aligned(1)));
static_assert(sizeof(eight) == 5, "sz");
static eight chars[500000];

using uint = unsigned int;

int main() {
    int N;
    cin >> N;
    char c;
    vector<uint> tmp(8);
    uint i = 0, index = 0;
    int num = 0;
    while (cin.get(c)) {
        num++;

        uint val = (uint) c - 'a';
        tmp[i] = val;

        i = (i + 1) % 8;
        if (i == 0) {
            chars[index].from_vec(tmp);
            index++;
        }
    }
    uint last_i;
    if (i > 0) {
        last_i = i - 1;
    } else {
        last_i = 7;
    }

    while (i < 8) {
        tmp[i] = 31;
        i++;
    }
    chars[index].from_vec(tmp);

    int left_chunk = 0, left = 0, right_chunk = last_i, right = index;
    vector<uint> lv = chars[left].to_vec();
    vector<uint> rv = chars[right].to_vec();
    while (left * 8 + left_chunk < right * 8 + right_chunk) {
        if (left_chunk > 7) {
            left_chunk = 0;
            left++;
            lv = chars[left].to_vec();
        }
        if (right_chunk < 0) {
            right_chunk = 7;
            right--;
            rv = chars[right].to_vec();
        }
        if (lv[left_chunk] != rv[right_chunk]) {
            cout << "NIE\n";
            return 0;
        } else {
            left_chunk++;
            right_chunk--;
        }
    }
    cout << "TAK\n";

    return 0;
}