C13332313311211113313331333133313331323132313331333133313222121   >>    C1333231331121111331333133313331333132313231333133313331322212   <<    C13332313311211113313331333133313331323132313331333133313222123   >>      C13332313311211113313331333133313331323132313331333133313222122   >>