plant_discovery_2

def is_valid_plant(plants_dict, plant_name):
    if plant_name in plants_dict:
        return True
    return print("error")


n = int(input())
plants = {}
for _ in range(n):
    plant, rarity = input().split("<->")
    rating = []
    plants[plant] = {"rarity": int(rarity), "rating": rating}

while True:
    data = input().split()
    if "Exhibition" in data[0]:
        break
    plant = data[1]
    if "Rate" in data[0]:
        rating = int(data[-1])
        if is_valid_plant(plants, plant):
            plants[plant]["rating"].append(rating)
    elif "Update" in data[0]:
        new_rarity = int(data[-1])
        if is_valid_plant(plants, plant):
            plants[plant]["rarity"] = new_rarity
    elif "Reset" in data[0]:
        if is_valid_plant(plants, plant):
            plants[plant]["rating"] = []

for plant_, data_ in plants.items():
    if data_["rating"]:
        data_['rating'] = sum(data_["rating"])/len(data_['rating'])
    else:
        data_['rating'] = 0

sorted_plants = sorted(plants.items(), key=lambda kvp: (-kvp[1]["rarity"], -kvp[1]["rating"]))
print("Plants for the exhibition:")
for plant_, data_ in sorted_plants:
    print(f"- {plant_}; Rarity: {data_['rarity']}; Rating: {data_['rating']:.2f}")