C212313222213113313112113121111331333313331333133313113313331323132233132322121
>>
C21231322221311331311211312111133133331333133313331311331333132313223313232212
<<
C212313222213113313112113121111331333313331333133313113313331323132233132322123
>>
C212313222213113313112113121111331333313331333133313113313331323132233132322122
>>