C111112111133131121133133313331333131333132322331333131211111133211311   >>    C11111211113313112113313331333133313133313232233133313121111113321131   <<    C111112111133131121133133313331333131333132322331333131211111133211313   >>      C111112111133131121133133313331333131333132322331333131211111133211312   >>