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#include <bits/stdc++.h>
using namespace std;
int ile[26][2][2];
int n;
int main(){
    cin >> n;
    for (int i = 0; i <= 1; i++)
        for (int j = 0; j < n; j++){
            char x;
            cin >> x;
            ile[x-'a'][j%2][i]++;
        }
    for (int i = 0; i < 26; i++)
        if (ile[i][0][0] != ile[i][0][1] || ile[i][1][0] != ile[i][1][1]) {
            cout << "NIE";
            exit(0);
        }
    cout << "TAK";
    return 0;
}