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#include <iostream>
#include <vector>

using namespace std;

int main() {
    int n;
    cin >> n;
    vector<int> even('z' - 'a' + 1, 0);
    vector<int> odd('z' - 'a' + 1, 0);

    for (int i = 0; i < n; ++i) {
        char letter;
        cin >> letter;
        if (i % 2 == 0) {
            even[letter - 'a']++;
        } else {
            odd[letter - 'a']++;
        }
    }
    for (int i = 0; i < n; ++i) {
        char letter;
        cin >> letter;
        if (i % 2 == 0) {
            if (even[letter - 'a'] == 0) {
                cout << "NIE" << '\n';
                return 0;
            } else {
                even[letter - 'a']--;
            }
        } else {
            if (odd[letter - 'a'] == 0) {
                cout << "NIE" << '\n';
                return 0;
            } else {
                odd[letter - 'a']--;
            }
        }

    }
    cout << "TAK" << '\n';


    return 0;
}