== =

src/main/java/resources/CalculatorResource.java

@@ -43,9 +43,9 @@ public class CalculatorResource {
         else if(expressionTrimmed.matches("^\\d+(?:\\s*[/]\\s*\\d+)*$")) result = division(expressionTrimmed);
 
         if(result == -1){
-            result == 69
+            result = 69;
         }
-        return result
+        return result;
     }
 
     /**