C312312111111331312111133133313331333133313231333133112111133133313223323311   >>    C31231211111133131211113313331333133313331323133313311211113313331322332331   <<    C312312111111331312111133133313331333133313231333133112111133133313223323313   >>      C312312111111331312111133133313331333133313231333133112111133133313223323312   >>