My solution to the task

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
 
     steps:
     - uses: actions/checkout@v2

package.json

@@ -16,7 +16,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "*",
-    "@mate-academy/scripts": "^0.3.6",
+    "@mate-academy/scripts": "^1.8.1",
     "eslint": "^5.16.0",
     "eslint-plugin-jest": "^22.4.1",
     "eslint-plugin-node": "^8.0.1",

readme.md

@@ -5,6 +5,7 @@ Reproduce the behavior of our robots. Create a function `makeRobotAccountant`, t
 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:
+
 ```
 const getSum = makeRobotAccountant();
 getSum(5)(6) === 11;

src/makeRobotAccountant.js

@@ -6,7 +6,21 @@
  */
 
 function makeRobotAccountant() {
-  // write code here
+  let callCounter = 0;
+
+  const getSum = (num) => {
+    callCounter++;
+
+    return (operatar) => {
+      if (callCounter > 3 && callCounter % 2 === 0) {
+        return 'Bzzz... Error!';
+      }
+
+      return num + operatar;
+    };
+  };
+
+  return getSum;
 }
 
 module.exports = makeRobotAccountant;