C312312111111331312111133133313331322331333133313133313113322231   >>    C31231211111133131211113313331333132233133313331313331311332223   <<    C312312111111331312111133133313331322331333133313133313113322233   >>      C312312111111331312111133133313331322331333133313133313113322232   >>