fixed calculator

src/main/java/resources/CalculatorResource.java

@@ -111,6 +111,6 @@ public class CalculatorResource {
 
     public static void main(String[] args) {
         CalculatorResource test = new CalculatorResource();
-        System.out.println(test.subtraction("3-1-1"));
+        System.out.println(test.division("99/3"));
     }
 }