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#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
#include <map>
#include <utility>

using namespace std;

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

    int n;
    cin >> n;

    string s;
    cin >> s;

    if (s == string(s.rbegin(), s.rend())) {
        cout << "TAK\n";
    } else {
        cout << "NIE\n";
    }
}