C111112111133131121133133313331333131333132322331333131133132212233231   >>    C11111211113313112113313331333133313133313232233133313113313221223323   <<    C111112111133131121133133313331333131333132322331333131133132212233233   >>      C111112111133131121133133313331333131333132322331333131133132212233232   >>