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

int main()
{   
    ios_base::sync_with_stdio(false);
    int n;
    cin >> n;
    string s;
    cin >> s;
    string t;
    cin >> t;
    
    multiset<char> c[2];
    for (int i = 0; i < n; ++i) {
        c[i % 2].insert(s[i]);
    }
    
    for (int i = 0; i < n; ++i) {
        auto p = c[i % 2].find(t[i]);
        if (p == c[i % 2].end()) {
            cout << "NIE" << '\n';
            exit(0);
        } else {
            c[i % 2].erase(p);
        }
    }
    
    cout << "TAK" << '\n';
}