ค้นหาชื่อของภูมิภาคที่ได้รับผลกระทบจากพายุที่คร่าชีวิตผู้คนไปมากที่สุด
Find the names of the regions which were affected by the storm that killed the greatest number of people.
df_region = pd.DataFrame(columns=['region_name', 'region_id'])
df_affected_region = pd.DataFrame(columns=['region_id', 'storm_id'])
df_storm = pd.DataFrame(columns=['storm_id', 'Number_Deaths'])
df_region[df_region['region_id'].isin(df_affected_region[df_affected_region['storm_id'] == df_storm.loc[df_storm['Number_Deaths'] == df_storm['Number_Deaths'].max(), 'storm_id'].values[0]]['region_id'])]['region_name']