C312312111111331312111133133313331322331333133313133313111323321   >>    C31231211111133131211113313331333132233133313331313331311132332   <<    C312312111111331312111133133313331322331333133313133313111323323   >>      C312312111111331312111133133313331322331333133313133313111323322   >>