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

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

    auto odd = new int[10000];
    auto even = new int[10000];
    int n;
    char c;
    for (c = 'a'; c <= 'z'; ++c)
        odd[c] = even[c] = 0;

    cin >> n;
    for (int i = 0; i < n; ++i)
    {
        cin >> c;
        if (i % 2 == 0)
            ++odd[c];
        else
            ++even[c];
    }

    for (int i = 0; i < n; ++i)
    {
        cin >> c;
        if (i % 2 == 0)
            --odd[c];
        else
            --even[c];
    }

    for (char c = 'a'; c <= 'z'; ++c)
        if (odd[c] != 0 || even[c] != 0)
        {
            cout << "NIE";
            return 0;
        }

    cout << "TAK";
    return 0;
}