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#include <iostream>


using namespace std;

bool isPal(string s);

int main() {
    ios::sync_with_stdio(false);

    int n;
    string word;

    cin >> n;
    cin >> word;

    cout << (isPal(word) ? "TAK" : "NIE") << endl;

}

bool isPal(string s) {
    unsigned long i = 0;
    unsigned long j = s.size() - 1;
    while (i <= j) {
        if (s[i] != s[j]) {
            return false;
        }
        i++;
        j--;
    }
    return true;
}