#include<iostream>
using namespace std;

#define REP(i,n)     for(int i=0;i<(n);++i)

int counts[2][30];
int n;
int main() {
    ios_base::sync_with_stdio(0);
    cin >> n;
    int sum = 0;
    string s;
    cin >> s;
    REP(i, n) {
        counts[i % 2][s[i] - 'a']++;
    }
    cin >> s;
    REP(i, n) {
        counts[i % 2][s[i] - 'a']--;
    }
    REP(r, 2) {
        REP(i, 30) {
            if (counts[r][i] != 0) {
                cout << "NIE" << endl;
                return 0;
            }
        }
    }
    cout << "TAK" << endl;
}