C312322331333132212111133133313331333131133113313331333131133132213233231   >>    C31232233133313221211113313331333133313113311331333133313113313221323323   <<    C312322331333132212111133133313331333131133113313331333131133132213233233   >>      C312322331333132212111133133313331333131133113313331333131133132213233232   >>