C1111233131211111211113313331333133313331312331333132231133112111211   >>    C111123313121111121111331333133313331333131233133313223113311211121   <<    C1111233131211111211113313331333133313331312331333132231133112111213   >>      C1111233131211111211113313331333133313331312331333132231133112111212   >>