注释:
max55maxxmax5x55xma5xmxx5xxxp..............................................................ip...........................................ip.....................................ip.....................p......................................ip..............................................ip..........................p...........................................................ip.........................................................................ip.............................p........................................................ip....................ip.....................................................ip................p............................................................................p...............xxmax5maxx5x5xx5xmaxxxmamaxmamaxp..............................p..............................p..............................mammmaxxx5
