C3132121111133313233121111331333133313331333133313331333133313223213331   >>    C313212111113331323312111133133313331333133313331333133313331322321333   <<    C3132121111133313233121111331333133313331333133313331333133313223213333   >>      C3132121111133313233121111331333133313331333133313331333133313223213332   >>