C13332313311211113313331333133313311211331333133313232212121111   >>    C1333231331121111331333133313331331121133133313331323221212111   <<    C13332313311211113313331333133313311211331333133313232212121113   >>      C13332313311211113313331333133313311211331333133313232212121112   >>