C11112331312111112111133133313331311331323212331333133312131211   >>    C1111233131211111211113313331333131133132321233133313331213121   <<    C11112331312111112111133133313331311331323212331333133312131213   >>      C11112331312111112111133133313331311331323212331333133312131212   >>