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//Patryk Kisielewski - pal.cpp

#include <iostream>
#include <cstdio>

#define MAX 200000

using namespace std;

int main(){
    int n;
    string str;
    char c;

    cin >> n;

    if(n > MAX){
        int a = 0;
        int i;

        unsigned short *tab = new unsigned short[MAX/2];

        for(i = 0; i < MAX/2; ++i)
            tab[i] = 0;

        getchar();

        for(i = 0; i < n/2; ++i){
            c = getchar()-'a';
            tab[a] += c;
            a += 3;
            if(a >= MAX/2)
                a -= MAX/2;
        }

        if(n%2){
            getchar();
            i++;
        }

        for(;i<n; ++i){
            c = getchar()-'a';
            tab[a] -= c;
            a -= 3;
            if(a < 0)
                a += MAX/2;
        }

        for(i = 0; i < MAX/2; ++i){
            if(tab[i] != 0){
                cout << "NIE\n";
                return 0;
            }
        }

        cout << "TAK\n";
        return 0;


    } else if(n == 0){
        int a = 0, b = MAX/4-1;
        int i;

        unsigned short *tab1 = new unsigned short[MAX/4];
        unsigned short *tab2 = new unsigned short[MAX/4];

        for(i = 0; i < MAX/4; ++i){
            tab1[i] = 0;
            tab2[i] = 0;
        }

        getchar();

        while((c = getchar()) != '\n' && c != EOF){
            c -= 'a';
            tab1[a] += c;
            tab2[b] += c;
            a += 3;
            b -= 3;
            if(a >= MAX/4)
                a -= MAX/4;
            if(b < 0)
                b += MAX/4;
        }

        bool war;

        for(int i = 0; i < MAX/4; ++i){
            war = true;
            for(int j = 0; j < MAX/4; ++j){
                if(tab1[j] != tab2[(i+j)%(MAX/4)]){
                    war = false;
                    break;
                }
            }
            if(war){
                cout << "TAK\n";
                return 0;
            }
        }

        cout << "NIE\n";
        return 0;

    }

    str.resize(200200);

    cin >> str;

    for(int i = 0, j = str.size()-1; i < j; ++i, --j){
        if(str[i] != str[j]){
            cout << "NIE\n";
            return 0;
        }
    }
    cout << "TAK\n";

    return 0;
}