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#include<iostream>
#include<string>
using namespace std;
int zadania[5][3];
int main()
{
    int n;
    cin >> n;
    string words[n];
    bool check = true;
    for(int i = 0; i < n; i++)
        cin >> words[i];

    for(int i = 0; i < n; i++)
    {
        int a = (int)words[i][0] - 48;
        int b;
        if(words[i][1] == 'A')
            b = 0;
        else if (words[i][1] == 'B')
            b = 1;
        else
            b = 2;
        zadania[a-1][b] += 1;
    }
    for(int i = 0; i < 4; i++)
    {
        for(int j = 0; j < 3; j++)
            if(zadania[i][j] < 1)
            {
                check = false;
                j = 10;
                i = 10;
            }
    }
    if(check)
    {
        for(int j = 0; j < 3; j++)
        {
            if(zadania[4][j] < 2)
            {
                check = false;
                j = 10;
            }
        }
    }
    if(check)
        cout << "TAK";
    else
        cout << "NIE";
}