C312322331333132212111133133313331333133312121111123231333131233231   >>    C31232233133313221211113313331333133313331212111112323133313123323   <<    C312322331333132212111133133313331333133312121111123231333131233233   >>      C312322331333132212111133133313331333133312121111123231333131233232   >>