diff --git a/src/makeRobotAccountant.js b/src/makeRobotAccountant.js
index 38b9758a..f36f50cd 100644
--- a/src/makeRobotAccountant.js
+++ b/src/makeRobotAccountant.js
@@ -7,6 +7,19 @@
 
 function makeRobotAccountant() {
   // write code here
+  let count = 0;
+
+  return (a) => {
+    return (b) => {
+      count++;
+
+      if (count <= 3 || count % 2 !== 0) {
+        return a + b;
+      }
+
+      return 'Bzzz... Error!';
+    };
+  };
 }
 
 module.exports = makeRobotAccountant;