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#include <iostream>
#define MAXN 30
using namespace std;
struct letters{
    int cnt_np;
    int cnt_p;
};
letters t[MAXN];
int main()
{
    ios_base :: sync_with_stdio(0);
    cin.tie(0);  cout.tie(0);
    int n; cin >> n;
    string s1; cin >> s1;
    string s2; cin >> s2;
    for(int i = 0; i < n; i++){
        if(i % 2 == 0)
            t[s1[i] - 'a'].cnt_p++;
        else
            t[s1[i] - 'a'].cnt_np++;
    }
    for(int i = 0; i < n; i++){
        if(i % 2 == 0){
            if(!t[s2[i]-'a'].cnt_p){
                cout << "NIE\n";
                return 0;
            }
            else
                t[s2[i]-'a'].cnt_p--;
        }
        else{
            if(!t[s2[i]-'a'].cnt_np){
                cout << "NIE\n";
                return 0;
            }
            else
                t[s2[i]-'a'].cnt_np--;
        }
    }
    cout << "TAK\n";
}