C11112331312111112111133133313331333132323133313331333133313113313231122231   >>    C1111233131211111211113313331333133313232313331333133313331311331323112223   <<    C11112331312111112111133133313331333132323133313331333133313113313231122233   >>      C11112331312111112111133133313331333132323133313331333133313113313231122232   >>