040000 tree 6b496fa7fbfbcfc937da38baf513e058888e903b	clusters
040000 tree 8ba92da217b46d4df5f3eb680dc5c5a1fc3e5c9a	common
040000 tree 59ca15c167c651782217acc2ab84cfb9beb28993	example
040000 tree 2504b50664126b65f207b4fae97363239d2ca2cb	interactive
040000 tree 2bcfc95f2ec3044830aac9b7ab9173ff2f465e7e	pairing