C11112331312111112111133133313331311331323212331333132233132213233233231   >>    C1111233131211111211113313331333131133132321233133313223313221323323323   <<    C11112331312111112111133133313331311331323212331333132233132213233233233   >>      C11112331312111112111133133313331311331323212331333132233132213233233232   >>