63. for index in range(2): while wells[index].water_level < wells[index].max_water_level: elephants[index].spray_at(wells[index]) 64. for index in range(len(wells)): while wells[index].water_level < wells[index].max_water_level: elephants[index].spray_at(wells[index]) 65. for index in range(len(wells)): while wells[index].water_level < wells[index].max_water_level: elephants[index].spray_at(wells[index]) 66. for index in range(len(wells)): while wells[index].water_level < wells[index].max_water_level: elephants[index].spray_at(wells[index]) 67. for obstacle in obstacles: if obstacle.is_ice() ...