C11112331312111112111133133313331333132112312113313231333133313222113213331121   >>    C1111233131211111211113313331333133313211231211331323133313331322211321333112   <<    C11112331312111112111133133313331333132112312113313231333133313222113213331123   >>      C11112331312111112111133133313331333132112312113313231333133313222113213331122   >>