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#include<iostream>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(0);
    unsigned long long P=1000000007;
    unsigned long long L[2]; 
    unsigned long long R[2];
    unsigned long long X[3] = {1610612741, 805206457, 402652189};
    unsigned long long D[2];
    int n;
    char x;
    for(int i=0;i<2;i++)
    {
        L[i]=R[i]=0;
        D[i]=1;
    }
    cin >>n;
    while(cin >>x)
    {
        if(x < 'a' || x> 'z')
        {
            continue;
        }
        for(int i=0;i<2;i++)
        {
            D[i]=(D[i]*X[i])%P;
            R[i]=(R[i]+((D[i]*x)%P))%P;
            L[i]=(L[i]+x)%P;
            L[i]=(L[i]*X[i])%P;
        }
    }
    bool yes = true;
    for(int i=0;i<2;i++)
    {
        if(L[i]!=R[i])
        {
            yes = false;
        }
    }
    cout << (yes ? "TAK" : "NIE")<<endl;

    return 0;
}