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#include <bits/stdc++.h>

using namespace std;

int tab[1000];
int tab2[1000];

int main(){
    ios_base::sync_with_stdio(0);
    int n;
    cin >> n;
    string a, b;
    cin >> a >> b;
    for(int i = 1; i < n; i += 2){
        tab[int(a[i])]++;
        tab2[int(a[i - 1])]++;
    }
    if(n % 2 == 1) tab2[int(a[n - 1])]++;
    for(int i = 1; i < n; i += 2){
        tab[int(b[i])]--;
        tab2[int(b[i - 1])]--;
    }
    if(n % 2 == 1) tab2[int(b[n - 1])]--;
    int wyn = 0;
    for(int i = 97; i < 123; i++){
        //cout << char(i) << " " << tab[i] << " " << tab2[i] << "\n";
        if(tab[i] != 0) wyn++;
        if(tab2[i] != 0) wyn++;
    }
    if(wyn != 0) cout << "NIE";
    else cout << "TAK";
    return 0;
}