____HHHHH_____HHHHH______DDDDDDDDDDD______LLLLL___________!!!!_!!!!_!!!!
____HHHHH_____HHHHH______DDDD_____DDD_____LLLLL___________!!!!_!!!!_!!!!
____HHHHHHHHHHHHHHH______DDDD_____DDDD____LLLLL___________!!!!_!!!!_!!!!
____HHHHHHHHHHHHHHH______DDDD_____DDDD____LLLLL___________!!!!_!!!!_!!!!
____HHHHH_____HHHHH______DDDD_____DDDD____LLLLL_____________________
____HHHHH_____HHHHH______DDDDDDDDDDD______LLLLLLLLLLL_____!!!!_!!!!_!!!!