C212313222213113313112113121111331333313331333133313232213331333132233111   >>    C21231322221311331311211312111133133331333133313331323221333133313223311   <<    C212313222213113313112113121111331333313331333133313232213331333132233113   >>      C212313222213113313112113121111331333313331333133313232213331333132233112   >>