C312312111111331312111133133313331322331333133313121111331121323321   >>    C31231211111133131211113313331333132233133313331312111133112132332   <<    C312312111111331312111133133313331322331333133313121111331121323323   >>      C312312111111331312111133133313331322331333133313121111331121323322   >>