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#include <bits/stdc++.h>


using namespace std;

int n, t;
string w, rev_word;


int main()
{

    cin>>n;
    cin>>w;
    rev_word=w;
    reverse(w.begin(), w.end());
    if(rev_word==w)
        cout<<"TAK";
    else
    cout<<"NIE";

    return 0;
}