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#include <iostream>



using namespace std;
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

string s;
int n;


int main(int argc, char** argv) 
{
	ios_base::sync_with_stdio(0); 
	cin>>n;
	
    cin >> s;
    if( equal(s.begin(), s.begin() + s.size()/2, s.rbegin()) )
        cout << "TAK";
    else
        cout << "NIE";
	return 0;
}