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#include <iostream>
#include <vector>
#include <string>

using namespace std;

int main()
{
    std::ios_base::sync_with_stdio(false); std::cin.tie(0); std::cout.tie(0);
    vector<int> A (5,0);
    vector<int> B (5,0);
    vector<int> C (5,0);
    int count = 0;

    int n;
    cin >> n;

    for(int i = 0; i < n; i++)
    {
        string tmp;
        cin >> tmp;
        if(tmp[1] == 'A')
        {
            A[tmp[0]-'0' - 1] += 1;
        }
        if(tmp[1] == 'B')
        {
            B[tmp[0]-'0' - 1] += 1;
        }
        if(tmp[1] == 'C')
        {
            C[tmp[0]-'0' - 1] += 1;
        }
    }
    bool check = true;
    for(int i = 0; i < 4; i++)
    {
        if(A[i] == 0)
        {
            check = false;
        }
        if(B[i] == 0)
        {
            check = false;
        }
        if(C[i] == 0)
        {
            check = false;
        }
    }
        if(A[4] < 2)
        {
            check = false;
        }
        if(B[4] < 2)
        {
            check = false;
        }
        if(C[4] < 2)
        {
            check = false;
        }

        if(check)
        {
            cout << "TAK\n";
        }else
        {
            cout << "NIE\n";
        }
}