diff --git a/C#/c# b/C#/c#
new file mode 100644
index 0000000..45ce758
--- /dev/null
+++ b/C#/c#
@@ -0,0 +1,21 @@
+using System;  
+  public class ArmstrongExample
+   {  
+     public static void Main(string[] args)  
+      {  
+       int  n,r,sum=0,temp;      
+       Console.Write("Enter the Num= ");      
+       n= int.Parse(Console.ReadLine());     
+       temp=n;      
+       while(n>0)      
+       {      
+        r=n%10;      
+        sum=sum+(r*r*r);      
+        n=n/10;      
+       }      
+       if(temp==sum)      
+        Console.Write("Armstrong Num.");      
+       else      
+        Console.Write("Not Armstrong Num.");      
+      }  
+  }