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#include <iostream>
#include <vector>
#include <bits/stdc++.h>

using namespace std;

int testowy(vector<char> a, vector<char> b, vector<char> c, char q)
{
        int p = 1;
        if(q == '5') p = 2;
        if(count(a.begin(), a.end(), q) >= p && count(b.begin(), b.end(), q) >= p && count(c.begin(), c.end(), q) >= p)
        {
            return 1;
        }
        else
        {
            return 0;
        }
}


int main()
{
    int n;
    string x;
    cin>>n;
    int wynik;

    string tab[n];
    std::vector<char> a,b,c;

    for(int i = 0; i < n; i++)
    {
        cin>>x;
        switch(x[1])
        {
        case 'A':
            a.push_back(x[0]);
            break;
        case 'B':
            b.push_back(x[0]);
            break;
        case 'C':
            c.push_back(x[0]);
            break;
        }
    }
    if(n<18)
    {
        cout<<"NIE";
        return 0;
    }

    wynik = testowy(a,b,c,'1') + testowy(a,b,c,'2') + testowy(a,b,c,'3') + testowy(a,b,c,'4') + testowy(a,b,c,'5');

    if(wynik == 5)
        cout<<"TAK";
    else
        cout<<"NIE";

    return 0;
}