number_plants = int(input())
plant_dictionary = {}
plant_rating = {}
for plant in range(number_plants):
    plant_name, rarity = input().split("<->")
    plant_dictionary[plant_name] = int(rarity)

while True:
    command = input().split(": ")
    if command[0] == "Exhibition":
        break

    elif command[0] == "Rate":
        plant, rating = command[1].split(" - ")
        if plant not in plant_dictionary.keys():
            print("error")
        elif plant not in plant_rating.keys():
            plant_rating[plant] = [int(rating)]
        else:
            plant_rating[plant].append(int(rating))

    elif command[0] == "Update":
        plant, new_rarity = command[1].split(" - ")
        if plant not in plant_dictionary.keys():
            print("error")
        else:
            plant_dictionary[plant] = int(new_rarity)

    elif command[0] == "Reset":
        plant = command[1]
        if plant not in plant_rating.keys():
            print("error")
        else:
            plant_rating[plant] = []

for key in plant_rating.keys():
    if len(plant_rating[key]) > 0:
        plant_rating[key] = [sum(plant_rating[key]) / len(plant_rating[key])]
    else:
        plant_rating[key] = [0]

for key in plant_rating.keys():
    plant_rating[key] = [str(f"{i:.2f}") for i in plant_rating[key]]

print("Plants for the exhibition:")
for key in plant_dictionary.keys():
    print(f"- {key}; Rarity: {plant_dictionary[key]}; Rating: {''.join(plant_rating[key])}")