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#include <bits/stdc++.h>

using namespace std;

const int max_n = 3e5 + 5;

char a[max_n], b[max_n];

int zliczanie[2][200];

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin >> n;
    for (int i = 0; i < n; i++){
        cin >> a[i];
        zliczanie[i % 2][a[i] - 'a']++;
    }
    for (int i = 0; i < n; i++){
        cin >> b[i];
        zliczanie[i % 2][b[i] - 'a']--;
    }
    for (int i = 0; i < 200; i++)
        if (zliczanie[0][i] || zliczanie[1][i]){
            cout << "NIE\n";
            return 0;
        }
    cout << "TAK\n";
    return 0;
}