ค้นหาชื่อและนามสกุลของผู้เล่นที่ได้รับรางวัลทั้งในปี 1960 และ 1961
Find the players' first name and last name who won award both in 1960 and in 1961.
df_player = pd.DataFrame(columns=['name_first', 'name_last']); df_player_award = pd.DataFrame(columns=['year'])
df_player[np.isin(df_player, df_player_award[df_player_award['year'] == '1960']) & np.isin(df_player, df_player_award[df_player_award['year'] == '1961'])][['name_first', 'name_last']]