C312322331333132212111133133313331333131133113313331333131211111312233231   >>    C31232233133313221211113313331333133313113311331333133313121111131223323   <<    C312322331333132212111133133313331333131133113313331333131211111312233233   >>      C312322331333132212111133133313331333131133113313331333131211111312233232   >>