C13332313311211113313331333133313331322333133313331333133313231313232211   >>    C1333231331121111331333133313331333132233313331333133313331323131323221   <<    C13332313311211113313331333133313331322333133313331333133313231313232213   >>      C13332313311211113313331333133313331322333133313331333133313231313232212   >>