diff --git a/introduction/visalrotanak/about.md b/introduction/visalrotanak/about.md
new file mode 100644
index 0000000..cd37cee
--- /dev/null
+++ b/introduction/visalrotanak/about.md
@@ -0,0 +1,12 @@
+# Introduction
+
+I am Visalrotanak.
+
+
+# Hobbies
+  - Programming
+  - Watching movies
+  - Playing games
+  - Sleeping
+
+## My favourite smile is :wink:
diff --git a/programs/C/Factorial Number.c b/programs/C/Factorial Number.c
new file mode 100644
index 0000000..18e536f
--- /dev/null
+++ b/programs/C/Factorial Number.c	
@@ -0,0 +1,12 @@
+#include <stdio.h>
+main()
+{
+	int factorial,i,result = 1;
+	printf("Enter number:  ");
+	scanf("%d",&factorial);
+	for(i=1;i<=factorial;i++)
+	{
+		result *= i ;
+	}
+	printf("Factorial of %d = %d",factorial,result);
+}