7b6v 6b6v1b 5b6v1 4b6v 3b6v1b
il5v1b hl5v1 gl5v fl5v1b el5v1
tu4v1 su4v ru4v1b qu4v1 pu4v
433v 333v1b 233v1 133v 033v1b
fd3v1b ed3v1 dd3v cd3v1b bd3v1