diff --git a/DataStructure/hetro.py b/DataStructure/hetro.py
new file mode 100644
index 0000000..de3ed10
--- /dev/null
+++ b/DataStructure/hetro.py
@@ -0,0 +1,17 @@
+#   program to search an element from a list of different type of values
+#   Developed by        : rakesh kumar
+#   Last revised on     : 20-lujy-2019
+
+list =[10,20,'a','abc',40,50.6]
+a = input("Enter any number")
+try:                # if we are able to type cast the value
+    b  = eval(a)
+    if b in list:
+        print("found")
+    else:
+        print("not found")
+except:             # if some run time error occur while conversion
+    if a in list:
+        print("Found")
+    else:
+        print("not  found")
diff --git a/similar_word.py b/similar_word.py
index d3350ca..8050577 100644
--- a/similar_word.py
+++ b/similar_word.py
@@ -1,5 +1,5 @@
 # Python program to print the similar
-# words using Enchant module
+# words using Enchant module 
  
 # Importing the Enchant module
 import enchant
diff --git a/string/reverseString.py b/string/reverseString.py
index 6696108..7ede82b 100644
--- a/string/reverseString.py
+++ b/string/reverseString.py
@@ -1,3 +1,3 @@
 str = "This is original string"
 rev = ''.join(reversed(str))
-print(rev)
\ No newline at end of file
+print(str[::-1])
\ No newline at end of file
diff --git a/webscraper/youtubeDownloader.py b/webscraper/youtubeDownloader.py
index 7a53bc0..2703d85 100644
--- a/webscraper/youtubeDownloader.py
+++ b/webscraper/youtubeDownloader.py
@@ -4,4 +4,4 @@
 import shutil
 ydl_opts = {}
 with youtube_dl.YoutubeDL(ydl_opts) as ydl:
-    ydl.download(['https://www.youtube.com/watch?v=AOcWELTI56Q&index=3&list=PLbpAWbHbi5rMM3i--gfgjwQ404DZmwwd3'])
\ No newline at end of file
+    ydl.download(['https://www.youtube.com/watch?v=HgwCeNVPlo0'])
\ No newline at end of file