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#include <bits/stdc++.h>

using namespace std;
int f[27][2], s[27][2];//first i second
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n; cin >> n;
    string a,b; cin >> a >> b;
    for(int i=0; i<n; i++){
        int x = a[i] - 'a'; f[x][i%2]++;
        x = b[i] - 'a'; s[x][i%2]++;
    }
    for(int i=0; i<26; i++){
        if(f[i][0] != s[i][0]){
            cout << "NIE\n";
            return 0;
        }
        if(f[i][1] != s[i][1]){
            cout << "NIE\n";
            return 0;
        }
    }
    cout << "TAK\n";

}