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#include <iostream>
#include <cstring>
#include <vector>
#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(0);
    int n;
    cin >> n;
    string a, b;
    cin >> a;
    b = a;
    reverse(b.begin(),b.end());
    if(a == b) cout << "TAK\n";
    else cout <<"NIE\n";
    return 0;
}