C133323133112111133133313331333133313223313331333133313231333133313121211   >>    C13332313311211113313331333133313331322331333133313331323133313331312121   <<    C133323133112111133133313331333133313223313331333133313231333133313121213   >>      C133323133112111133133313331333133313223313331333133313231333133313121212   >>