C13332313311211113313331333133313311211331333133313232212233121   >>    C1333231331121111331333133313331331121133133313331323221223312   <<    C13332313311211113313331333133313311211331333133313232212233123   >>      C13332313311211113313331333133313311211331333133313232212233122   >>