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#include <iostream>
using namespace std;
int tab[15];
int main()
{
	ios_base::sync_with_stdio(0);
	int a,b,czy=true;
	char c;
	cin>>a;
	if (a<18)
	{
		cout<<"NIE";
	}else
	{
	for (int i=0;i<a;i++)
	{
		cin>>b>>c;
		if(b==1 and c=='A')
		{
			tab[0]++;
		}else
		if(b==1 and c=='B')
		{
			tab[1]++;
		}else
		if(b==1 and c=='C')
		{
			tab[2]++;
		}else
		if(b==2 and c=='A')
		{
			tab[3]++;
		}else
		if(b==2 and c=='B')
		{
			tab[4]++;
		}else
		if(b==2 and c=='C')
		{
			tab[5]++;
		}else
		if(b==3 and c=='A')
		{
			tab[6]++;
		}else
		if(b==3 and c=='B')
		{
			tab[7]++;
		}else
		if(b==3 and c=='C')
		{
			tab[8]++;
		}else
		if(b==4 and c=='A')
		{
			tab[9]++;
		}else
		if(b==4 and c=='B')
		{
			tab[10]++;
		}else
		if(b==4 and c=='C')
		{
			tab[11]++;
		}else
		if(b==5 and c=='A')
		{
			tab[12]++;
		}else
		if(b==5 and c=='B')
		{
			tab[13]++;
		}else
		if(b==5 and c=='C')
		{
			tab[14]++;
		}
		
	}
	for (int i=0;i<15;i++)
	{
		if(i<=11 and tab[i]<1)
		{
			czy=false;
			break;
		}
		if(i>=12 and tab[i]<2)
		{
			czy=false;
			break;
		}
	}
	if (czy==true)
	{
		cout<<"TAK";
	}
	else
	cout<<"NIE";
	}
}