C312312111111331312111133133313331322331333133313331333132211312131   >>    C31231211111133131211113313331333132233133313331333133313221131213   <<    C312312111111331312111133133313331322331333133313331333132211312133   >>      C312312111111331312111133133313331322331333133313331333132211312132   >>