import pandas as pd
df = pd.read_csv('/datasets/music_log_upd_en.csv')

genre_rock = df[(df['genre_name'] == 'Rock')&(df['total_play_seconds'] != 0)]
genre_rock_max = genre_rock['total_play_seconds'].max()
print('The maximum listening time in the rock genre is:',genre_rock_max)
genre_rock_min = genre_rock['total_play_seconds'].min()
print('The minimum listening time in the rock genre is:',genre_rock_min)