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// Andrzej Radzik

#include <iostream>

int main() {
	std::cin.tie( 0 );
	int array[ 15 ];
	int tasks;
	int roundNum;
	int i;
	char division;
	bool succes = true;
	
	for ( i = 0; i < 15; i++ ) {
		array[ i ] = 0;
	}
	
	std::cin >> tasks;
	
	while ( tasks > 0 ) {
		std::cin >> roundNum;
		std::cin >> division;
		array[ (division - 'A') * 5 + roundNum - 1 ] += 1;
		tasks--;
	}
	
	for ( i = 0; i < 15; i++ ) {
		if ( i % 5 == 4 ) {
			if ( array[ i ] <= 1 ) {
				succes = false;
			}
		} else {
			if ( array[ i ] <= 0 ) {
				succes = false;
			}
		}
	}
	
	if ( succes )
		std::cout << "TAK" << std::endl;
	else
		std::cout << "NIE" << std::endl;
		
	return 0;
}