C3132121111133313233121111331333133313331333133313331333133313223213111   >>    C313212111113331323312111133133313331333133313331333133313331322321311   <<    C3132121111133313233121111331333133313331333133313331333133313223213113   >>      C3132121111133313233121111331333133313331333133313331333133313223213112   >>