diff --git a/function/getRandomInt.js b/function/getRandomInt.js
new file mode 100644
index 0000000..de10718
--- /dev/null
+++ b/function/getRandomInt.js
@@ -0,0 +1,2 @@
+const getRandomInt = (max) => Math.floor(Math.random() * max);
+export default getRandomInt;
diff --git a/package.json b/package.json
index 98f802c..23b87f7 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,8 @@
   "description": "[![Actions Status](https://github.com/Tanya14081981/frontend-project-44/workflows/hexlet-check/badge.svg)](https://github.com/Tanya14081981/frontend-project-44/actions)",
   "bin": {
     "brain-games": "bin/brain-games.js",
-    "brain-even": "bin/brain-even.js"
+    "brain-even": "bin/brain-even.js",
+    "brain-calc": "bin/brain-calc.js"
   },
   "main": "index.js",
   "scripts": {