รัสเซียมีความร้อนสูงกว่า 3 เวลาใด?
What is Russia's time with a heat higher than 3?
df = pd.DataFrame({'time': ['1', '2', '3'], 'nationality': ['russia', 'ukraine', 'belarus'], 'heat': ['4', '2', '3']})
df[(df['nationality'] == 'russia') & (df['heat'] > '3')]['time'].values