Solution

.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": "^1.9.3",
     "eslint": "^5.16.0",
     "eslint-plugin-jest": "^22.4.1",
     "eslint-plugin-node": "^8.0.1",

src/makeRobotAccountant.js

@@ -6,7 +6,21 @@
  */
 
 function makeRobotAccountant() {
-  // write code here
+  let count = 0;
+
+  return function(a) {
+    return function(b) {
+      count++;
+
+      if (count <= 3 || count % 2 !== 0) {
+        const sum = a + b;
+
+        return sum;
+      } else {
+        return 'Bzzz... Error!';
+      }
+    };
+  };
 }
 
 module.exports = makeRobotAccountant;