C11112331312111112111133133313331311331323212331333131133132322111111211   >>    C1111233131211111211113313331333131133132321233133313113313232211111121   <<    C11112331312111112111133133313331311331323212331333131133132322111111213   >>      C11112331312111112111133133313331311331323212331333131133132322111111212   >>