C11112331312111112111133132313331333133313232213331333132322231111   >>    C1111233131211111211113313231333133313331323221333133313232223111   <<    C11112331312111112111133132313331333133313232213331333132322231113   >>      C11112331312111112111133132313331333133313232213331333132322231112   >>