C312312111111331312111133133313331322331333133313121111332231321   >>    C31231211111133131211113313331333132233133313331312111133223132   <<    C312312111111331312111133133313331322331333133313121111332231323   >>      C312312111111331312111133133313331322331333133313121111332231322   >>