B'Anton likes to play chess. Also, he likes to do programming. That is why he decided to write the program that plays chess. However, he finds the game on 8 to 8 board to too simple, he uses an infinite one instead. The first task he faced is to check whether the king is in check. Anton doesn 't know how to implement this so he asks you to help. Consider that an infinite chess board contains one white king and the number of black pieces. There are only rooks, bishops and queens, as the other pieces are not supported yet. The white king is said to be in check if at least one black piece can reach the cell with the king in one move. Help Anton and write the program that for the given position determines whether the white king is in check. Remainder, on how do chess pieces move: The first line of the input contains a single integer n (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89500 xe2 x80 x89000) -- the number of black pieces. The second line contains two integers x0 and y0 ( xe2 x80 x89- xe2 x80 x89109 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89x0, xe2 x80 x89y0 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89109) -- coordinates of the white king. Then follow n lines, each of them contains a character and two integers xi and yi ( xe2 x80 x89- xe2 x80 x89109 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89xi, xe2 x80 x89yi xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89109) -- type of the i-th piece and its position. Character 'B ' stands for the bishop, 'R ' for the rook and 'Q ' for the queen. It 's guaranteed that no two pieces occupy the same position. The only line of the output should contains "YES" (without quotes) if the white king is in check and "NO" (without quotes) otherwise. Picture for the first sample: Picture for the second sample: '...