C133323133112111133133313331333133313232212133121111331322312121   >>    C13332313311211113313331333133313331323221213312111133132231212   <<    C133323133112111133133313331333133313232212133121111331322312123   >>      C133323133112111133133313331333133313232212133121111331322312122   >>