diff --git a/Article View I.py b/Article View I.py
new file mode 100644
index 0000000..e1457fe
--- /dev/null
+++ b/Article View I.py	
@@ -0,0 +1,6 @@
+import pandas as pd
+
+def article_views(views: pd.DataFrame) -> pd.Series:
+    df = views[views['author_id'] == views['viewer_id']]
+    unique_id = df['author_id'].unique()
+    return pd.DataFrame(unique_id, columns = ['id']).sort_values(by = ['id'])
diff --git a/InvalidTweets.py b/InvalidTweets.py
new file mode 100644
index 0000000..6f96c7c
--- /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