/**
 *
 * Solution to homework task
 * Introduction to programming course
 * Faculty of Mathematics and Informatics of Sofia University
 * Winter semester 2016/2017
 *
 * @author Nikolay Naydenov
 * @idnumber 81565
 * @task 4
 * @compiler GCC
 *
 */

#include <iostream>
#include <cmath>

using namespace std;

int main () {
	char piece,
		ax,
		ay,
		dx,
		dy;
	bool isCheck = false;

	cin >> piece;
	cin >> ax >> ay;
	cin >> dx >> dy;

	switch(piece) {
		case 'Q':
			isCheck = ax == dx || ay == dy || abs(ax - dx) == abs(ay - dy);
			break;



		case 'B':
			isCheck = abs(ax - dx) == abs(ay - dy);
			break;

		case 'N':
			isCheck =
					abs(ax - dx) == 1 && abs(ay - dy) == 2 ||
					abs(ax - dx) == 2 && abs(ay - dy) == 1;
			break;

		case 'R':
			isCheck = ax == dx || ay == dy;
			break;
	}

	cout << (isCheck ? "Yes" : "No");
	cout << '\n';

	return 0;
}