         return res
     }
     
-    fileprivate func buildSpecialLine(words: [String], _ start: Int, _ end: Int, _ lineLength: Int) -> String {
+    fileprivate func buildSpecialLine(_ words: [String], _ start: Int, _ end: Int, _ lineLength: Int) -> String {
         var res = ""
         
         for i in start...end {

        }
        
        for i in 0..<words.count {
            let wordLen = words[i].characters.count
        
            if count + (i - last) + wordLen > maxWidth {
                var spaceNum = 0

            }
        }
        
        for _ in res.count..<lineLength {
            res += " "
        }
        
