C1111233131211111211113313331333133313331333133313331333133313332113313223231   >>    C111123313121111121111331333133313331333133313331333133313331333211331322323   <<    C1111233131211111211113313331333133313331333133313331333133313332113313223233   >>      C1111233131211111211113313331333133313331333133313331333133313332113313223232   >>