C1111121111331311211331333133313331313331323223313232213331311112111   >>    C111112111133131121133133313331333131333132322331323221333131111211   <<    C1111121111331311211331333133313331313331323223313232213331311112113   >>      C1111121111331311211331333133313331313331323223313232213331311112112   >>