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#include <iostream>

using namespace std;
typedef long long LL;

const LL BASE = 1000000007;
const int p=53;

LL hash1=0, hash2=0,pwr=1;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin>>n;
    char c;
    while(cin>>c) {
        hash1 = (hash1*p+c)%BASE;
        hash2 = (hash2+pwr*c)%BASE;
        pwr = (pwr*p)%BASE;
        //cout<<hash1<<" - "<<hash2<<endl;
    }
    if(hash1<0) hash1+=BASE;
    if(hash2<0) hash2+=BASE;
    cout<<((hash1==hash2)?"TAK":"NIE");

    return 0;
}