C11112331312111112111133133313231333133313311211331322333121121   >>    C1111233131211111211113313331323133313331331121133132233312112   <<    C11112331312111112111133133313231333133313311211331322333121123   >>      C11112331312111112111133133313231333133313311211331322333121122   >>