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using namespace std;
#include <iostream>
#include <map>

bool check(map<string,int>& zadania)
{
    map<string,int>::iterator it;
    for(it=zadania.begin(); it!=zadania.end();it++)
    {
        if(it->second < 1)
            return false;
    }

    if(zadania["5A"]<2 || zadania["5B"]<2 || zadania["5C"]<2)
        return false;

    return true;
}

int main()
{
    map<string,int> zadania = {{"1A",0},{"1B",0},{"1C",0},{"2A",0},{"2B",0},{"2C",0},{"3A",0},{"3B",0},{"3C",0},{"4A",0},{"4B",0},{"4C",0},{"5A",0},{"5B",0},{"5C",0}};
    int n;
    cin>>n;
    for(int i=0; i<n; i++)
    {
        string pozycja;
        cin>>pozycja;
        zadania[pozycja]++;
    }

    cout<<(check(zadania) ? "TAK" : "NIE");
    
    
    return 0;
}