C11112331312111112111133133313331311331323131323133313223313132311   >>    C1111233131211111211113313331333131133132313132313331322331313231   <<    C11112331312111112111133133313331311331323131323133313223313132313   >>      C11112331312111112111133133313331311331323131323133313223313132312   >>