C133323133112111133133313331333133313231322331333133313331333232132121   >>    C13332313311211113313331333133313331323132233133313331333133323213212   <<    C133323133112111133133313331333133313231322331333133313331333232132123   >>      C133323133112111133133313331333133313231322331333133313331333232132122   >>