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#include <bits/stdc++.h>
using namespace std;
int n;
char c;
string inp;
int main()
{
    ios_base::sync_with_stdio(0);
    cin >> n;
    cin >> inp;
    int a = 0;
    int b = inp.size()-1;
    while (a < b)
    {
        if (inp[a] == inp[b]) a++, --b;
        else
        {
            cout << "NIE";
            return 0;
        }
    }
    cout << "TAK";
    return 0;
}