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

char c;
int n;
const long long p=29,m=1000000009;
long long cp=1,h1,h2;

long long mod(int a) {
    if(a>=m)
        return a%m;
    else
        return a;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin>>n;
    while(cin>>c) {
        c-='a';
        h1=mod(h1+cp*c);
        h2=mod(h2*p+c);
        cp=mod(cp*p);
    }
    if(h1==h2)
        cout<<"TAK";
    else
        cout<<"NIE";
    return 0;
}