C11112331312111112111133133313231333133313311211331323133313132333132232321   >>    C1111233131211111211113313331323133313331331121133132313331313233313223232   <<    C11112331312111112111133133313231333133313311211331323133313132333132232323   >>      C11112331312111112111133133313231333133313311211331323133313132333132232322   >>