inverse value weight

src/Reader.java

@@ -17,8 +17,8 @@ public class Reader {
         List<Item> items = new ArrayList<>();
         double weight,value;
         while(scanner.hasNext()){
-            value = scanner.nextDouble();
             weight = scanner.nextDouble();
+            value = scanner.nextDouble();
             items.add(new Item(weight,value));
         }
         return new Instance(bound,items);