输入n组数据，每组数据包括棋的颜色（B表示黑，W表示白）和棋盘位置（x,y），输入结束后根据输入数据画出棋盘，并分别判断黑、白棋是否存在“五连”。-N set of data input, each data include chess color (B, said Black, W said the white) and the board position (x, y), enter the draw after the end of the input data according to