diff --git a/ArticleViews1.py b/ArticleViews1.py
new file mode 100644
index 0000000..644253a
--- /dev/null
+++ b/ArticleViews1.py
@@ -0,0 +1,7 @@
+import pandas as pd
+
+def article_views(views: pd.DataFrame) -> pd.DataFrame:
+    df = views[views['author_id']==views['viewer_id']]
+    df1 = df.drop_duplicates(subset = ['author_id'], inplace = False)
+    df1.sort_values(by = ['author_id'], inplace = True)
+    return df1[['author_id']].rename(columns = {'author_id':'id'})
\ No newline at end of file
diff --git a/InvalidTweets.py b/InvalidTweets.py
new file mode 100644
index 0000000..a16f636
--- /dev/null
+++ b/InvalidTweets.py
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def invalid_tweets(tweets: pd.DataFrame) -> pd.DataFrame:
+    df = tweets[tweets['content'].str.len()> 15]
+    return df[['tweet_id']]
\ No newline at end of file