#include <bits/stdc++.h>

using namespace std;

int main() {
    int n;
    string a, b;
    cin >> n >> a >> b;
    unordered_map<char, pair<int, int>> mapa;
    for (int i = 0; i < n; i++) {
        auto& x = (i%2 ? mapa[b[i]].second : mapa[b[i]].first);
        x++;
    }
    bool f = 0;
    for (int i = 0; i < n; i++) {
        auto& x = (i%2 ? mapa[a[i]].second : mapa[a[i]].first);
        if (x > 0) {
            x--;
        } else {
            f = 1;
            break;
        }
    }
    if (f) {
        cout << "NIE\n";
    } else {
        cout << "TAK\n";
    }
    return 0;
}