C1111121111331311211331333133313113313331311331333132313331333133313232223231   >>    C111112111133131121133133313331311331333131133133313231333133313331323222323   <<    C1111121111331311211331333133313113313331311331333132313331333133313232223233   >>      C1111121111331311211331333133313113313331311331333132313331333133313232223232   >>