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#include <iostream>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int pa[26] = {};
    int niepa[26] = {};
    int n;

    cin >> n;

    string a, b;

    cin >> a;
    cin >> b;

    bool parz = false;
    for (auto it : a)
    {
        if (parz)
            pa[it - 97]++;
        else
            niepa[it - 97]++;

        parz = !parz;
    }

    parz = false;
    for (auto it : b)
    {
        if (parz)
        {
            pa[it - 97]--;
            if (pa[it - 97] < 0)
            {
                cout << "NIE\n";
                return 0;
            }
        }
        else
        {
            niepa[it - 97]--;
            if (niepa[it - 97] < 0)
            {
                cout << "NIE\n";
                return 0;
            }
        }   

        parz = !parz;
    }

    cout << "TAK\n";
}