C1111121111331311211331333133313331333133313231333133313331333121111132233231   >>    C111112111133131121133133313331333133313331323133313331333133312111113223323   <<    C1111121111331311211331333133313331333133313231333133313331333121111132233233   >>      C1111121111331311211331333133313331333133313231333133313331333121111132233232   >>