diff --git a/challengers-list.md b/challengers-list.md
index 848dec155..cb1191ebc 100644
--- a/challengers-list.md
+++ b/challengers-list.md
@@ -1,3 +1,4 @@
 # List of challengers
 1. [Shivay](https://github.com/shivaylamba)
-2. [shivscaler](http://github.com/shivscaler)
+3. [Sumeet-Parab-2003](https://github.com/Sumeet-Parab-2003)
+Resolved conflict!!
\ No newline at end of file
diff --git a/contributors/challenge10.md b/contributors/challenge10.md
new file mode 100644
index 000000000..e69de29bb
diff --git a/contributors/challenge11.md b/contributors/challenge11.md
new file mode 100644
index 000000000..db92234f2
--- /dev/null
+++ b/contributors/challenge11.md
@@ -0,0 +1,2 @@
+## This is 11th day with 11th task!
+**Hope I make it till 30th day.** 
\ No newline at end of file
diff --git a/gistsolution.md b/gistsolution.md
new file mode 100644
index 000000000..d677e84fc
--- /dev/null
+++ b/gistsolution.md
@@ -0,0 +1,2 @@
+1. [Gist1MyFavProgLang](https://gist.github.com/Sumeet-Parab-2003/e6007603ac34ee8eb17bef050eefc6a3)
+2. [Gist2MyFavDevLang](https://gist.github.com/Sumeet-Parab-2003/919dbf4c318cdb96698dc1b8b26a89af)
\ No newline at end of file