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#include <iostream>
using namespace std;
int tab[6][3];

int n,m,k;
char l;
string a;
bool zle;
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin>>n;
    for(int i = 0; i < n; i++)
    {
        cin>>a;
        k = a[0] - '0';
        l = a[1];
        if( l == 'A')
            m = 0;
        if( l == 'B')
            m = 1;
        if( l == 'C')
            m = 2;
        tab[k][m]++;
        //cout<<k<<l<<m<<' '<<tab[k][m]<<endl;

    }
    for(int i = 1; i < 6; i++)
    {
        for(int j = 0; j < 3; j++)
        {
            //cout<<tab[i][j]<<' '<<i<<' '<<j<<endl;
            if(tab[i][j] == 0)
            {
                zle = true;
                break;
            }
            if(i == 5 && tab[i][j] < 2)
            {
                zle = true;
                break;
            }
        }
    }
    if( zle == true)
        cout<<"NIE";
    else
        cout<<"TAK";

}