diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 444e13b..dba0a20 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -60,7 +60,7 @@ We'd also love PRs. If you're thinking of a large PR, we advise opening up an is
 
 ```
    git push origin YourBranchName
-```
+```sneha
 
 **8.** Create a [PR](https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/creating-a-pull-request)
 
diff --git a/c_programs/series.c b/c_programs/series.c
new file mode 100644
index 0000000..88a44ba
--- /dev/null
+++ b/c_programs/series.c
@@ -0,0 +1,15 @@
+#include<stdio.h>
+double sum(int n)
+{
+  double i,s=0.0;
+  for(i=1;i<=n;i++)
+  {
+	s=s+1/i;
+  }
+  return s;
+}
+void main()
+{
+	int n=10;
+    printf("Sum is : %f",sum(n));
+}
\ No newline at end of file