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#include <bits/stdc++.h>
using namespace std;

int n;
int p[27], np[27];
string s1, s2;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    cin >> s1 >> s2;
    for (int i = 0; i < n; i++) {
        if (i % 2) {
            np[s1[i]-'a']++;
        } else {
            p[s1[i]-'a']++;
        }
    }
    for (int i = 0; i < n; i++) {
        if (i % 2) {
            np[s2[i]-'a']--;
        } else {
            p[s2[i]-'a']--;
        }
    }
    for (int i = 0; i < 26; i++) {
        if (p[i] != 0 || np[i] != 0) {
            cout << "NIE";
            return 0;
        }
    }
    cout << "TAK";
    return 0;
}