____________________________ M O O * * M O O * * M O O * * M | ________________________ | O O | | | | O O | | | | * * | | | | * * | | | | M M | | | | O O | | | | O O | | | | * * | | | | * * | |________________________dc| M O O * * M O O * * M O O * * M |____________________________|