C11112331312111112111133133313331311331323212331333132321323221   >>    C1111233131211111211113313331333131133132321233133313232132322   <<    C11112331312111112111133133313331311331323212331333132321323223   >>      C11112331312111112111133133313331311331323212331333132321323222   >>