C1111121111331311211331333133313231333132213233313331323221333132312321   >>    C111112111133131121133133313331323133313221323331333132322133313231232   <<    C1111121111331311211331333133313231333132213233313331323221333132312323   >>      C1111121111331311211331333133313231333132213233313331323221333132312322   >>