diff --git a/README.md b/README.md
index 2907598..5be1da1 100644
--- a/README.md
+++ b/README.md
@@ -108,3 +108,8 @@ On Mac: `brew install npm`
 	```
 	git branch -D js-calculator
 	```
+## Running the calculator
+
+Run the script:
+```bash
+python3 calculator.py
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