C111112111133131121133133313331333133313331323133313331333132322331323211221   >>    C11111211113313112113313331333133313331333132313331333133313232233132321122   <<    C111112111133131121133133313331333133313331323133313331333132322331323211223   >>      C111112111133131121133133313331333133313331323133313331333132322331323211222   >>