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#include <iostream>
using namespace std;

int main() {
    int n;
    int zad[5][3];
    for (int i=0; i<5; i++) {
        for (int j=0; j<3; j++) {
            zad[i][j] = 0;
        }
    }
    cin >> n;
    for (int i=0; i<n; i++) {
        int runda;
        char zbior;
        cin >> runda >> zbior;
        zad[runda-1][zbior - 'A']++;
    }
    bool pass = true;
    for (int i=0; i<4; i++) {
        for (int j=0; j<3; j++) {
            if (zad[i][j] == 0) {
                pass = false;
            }
        }
    }
    for (int j=0; j<3; j++) {
        if (zad[4][j] < 2) {
            pass = false;
        }
    }
    if (pass) {
        cout << "TAK" << endl;
    } else {
        cout << "NIE" << endl;
    }
    return 0;
}