ตำแหน่งใดรอบสูงกว่า 15 และมีคะแนนรวม 411
What position is the round higher than 15 and has an overall of 411.
df = pd.DataFrame(columns=['position', 'round', 'overall'])
df.loc[(df['round'] > 15) & (df['overall'] == 411), 'position']