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#include<bits/stdc++.h>

using namespace std;

int main(){
    int n; cin>>n;
    string a, b;
    cin>>a>>b;
    vector<array<int, 2>> cnt(26);
    for(int i = 0; i < 26; i++){
        cnt[i][0] = 0; cnt[i][1] = 0;
    }
    for(int i = 0; i < n; i++){
        cnt[(a[i] - 'a')][i%2]++;
        cnt[(b[i] - 'a')][i%2]--;
    }
    bool result = true;
    for(int i = 0; i < 26; i++){
        if(cnt[i][0] != 0 || cnt[i][1] != 0){
            result = false;
        }
    }
    if(result)cout<<"TAK";
    else cout<<"NIE";
    return 0;
}