solution

package.json

@@ -16,7 +16,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "*",
-    "@mate-academy/scripts": "^0.3.6",
+    "@mate-academy/scripts": "^1.2.8",
     "eslint": "^5.16.0",
     "eslint-plugin-jest": "^22.4.1",
     "eslint-plugin-node": "^8.0.1",

readme.md

@@ -1,8 +1,14 @@
 # Sum with a closure
 
 Accounting, numbers, many numbers. Boring. The solution is to automate! The first robot accountant came off the assembly line. I don't know how accountants' brains don't melt, but when our robot starts adding numbers, it starts to burn significantly and it counts every other time.
-Reproduce the behavior of our robots. Create a function `makeRobotAccountant`, the result of which is a function that works on the pattern `getSum (4) (5) === 9`.
-The first 3 calls to this feature work fine. Then all even calls return the string `Bzzz... Error!`, And odd calls the correct value.
+Reproduce the behavior of our robots. 
+
+Create a function `makeRobotAccountant`, 
+the result of which is a function 
+that works on the pattern `getSum (4) (5) === 9`.
+The first 3 calls to this feature work fine. 
+Then all even calls return the string `Bzzz... Error!`
+, And odd calls the correct value.
 
 Example:
 ```

src/makeRobotAccountant.js

@@ -6,7 +6,19 @@
  */
 
 function makeRobotAccountant() {
-  // write code here
+  let counter = 0;
+  return function (a) {
+    return function (b) {
+      counter++;
+
+      if (counter > 3 && counter % 2 === 0) {
+        return 'Bzzz... Error!';
+      }
+
+      return a + b;
+    }
+  }
 }
 
+
 module.exports = makeRobotAccountant;