FFFFFFFFFFFFFFFFFFFFFF tttt WWWWWWWW WWWWWWWW F::::::::::::::::::::F ttt:::t W::::::W W::::::W F::::::::::::::::::::F t:::::t W::::::W W::::::W FF::::::FFFFFFFFF::::F t:::::t W::::::W W::::::W F:::::F FFFFFFttttttt:::::tttttttW:::::W WWWWW W:::::W F:::::F t:::::::::::::::::t W:::::W W:::::W W:::::W F::::::FFFFFFFFFF t:::::::::::::::::t W:::::W W:::::::W W:::::W F:::::::::::::::F tttttt:::::::tttttt W:::::W W:::::::::W W:::::W F:::::::::::::::F t:::::t W:::::W W:::::W:::::W W:::::W F::::::FFFFFFFFFF t:::::t W:::::W W:::::W W:::::W W:::::W F:::::F t:::::t W:::::W:::::W W:::::W:::::W F:::::F t:::::t tttttt W:::::::::W W:::::::::W FF:::::::FF t::::::tttt:::::t W:::::::W W:::::::W F::::::::FF tt::::::::::::::t W:::::W W:::::W F::::::::FF tt:::::::::::tt W:::W W:::W FFFFFFFFFFF ttttttttttt WWW WWW