C111112111133131121133133313331333131333132322331333131211211312131   >>    C11111211113313112113313331333133313133313232233133313121121131213   <<    C111112111133131121133133313331333131333132322331333131211211312133   >>      C111112111133131121133133313331333131333132322331333131211211312132   >>