040000 tree 57a17b655eb1ad7147acc1262f87ba6fab81a938	basic
040000 tree 06642db47aaa17cf8df153d0feee032e2f38513f	bind
040000 tree 900467972799350901afaf4ce13847e7a4aa53d2	flappy
040000 tree 9623e5969face7a350bd3ffd3f7509b5e5a79c9c	ivy
040000 tree a070e4b3d3042a11a5b4b3c695a25e27ef0d067c	network