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#include <iostream>
using namespace std;

int n, p1[26], n1[26];
char c;
bool czy;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin>>n;
    for (int i=0; i<n/2; i++) {
        cin>>c;
        n1[c-97]++;
        cin>>c;
        p1[c-97]++;
    }
    if (n%2) {
        cin>>c;
        n1[c-97]++;
    }
    for (int i=0; i<n/2; i++) {
        cin>>c;
        n1[c-97]--;
        cin>>c;
        p1[c-97]--;
    }
    if (n%2) {
        cin>>c;
        n1[c-97]--;
    }
    for (int i=0; i<n; i++) {
        if (n1[i] or p1[i]) czy=1;
    }
    if (czy) cout<<"NIE";
    else cout<<"TAK";
}