diff --git a/README.md b/README.md
index 8ee39e8..832d291 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,9 @@
 Reactive calculator
 
 ## Expressions
+int a, b
+add=a+b
+console. WriteLine("add two number") ;
 
 ```
 2 inch to cm
@@ -58,4 +61,4 @@ Change indent: Tab/Shift+Tab
 
 ## Using Math.js:
 
-https://github.com/grimalschi/mathjs
\ No newline at end of file
+https://github.com/grimalschi/mathjs