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#include <iostream>
#include <bits/stdc++.h>
using namespace std;

int main()
{
    int n;
    string s,pomoc;
    cin>>n;
    cin>>s;
    pomoc = s;
    reverse(s.begin(),s.end());
    if(pomoc == s) cout<<"TAK"<<endl;
    else cout<<"NIE"<<endl;
    return 0;
}