C3132121111133313233121111331333133313331333133313331333133313331333221333121   >>    C313212111113331323312111133133313331333133313331333133313331333133322133312   <<    C3132121111133313233121111331333133313331333133313331333133313331333221333123   >>      C3132121111133313233121111331333133313331333133313331333133313331333221333122   >>