import math
dictionary_shells = {}
while True:
    input_string = input()
    if input_string == "Aggregate":
        break
    input_list = input_string.split()

    region = input_list[0]
    size = [int(input_list[1])]


    if region in dictionary_shells:
        if size[0] in dictionary_shells[region]:
            continue
        else:
            dictionary_shells[region].append(size[0])
    else:
        dictionary_shells[region] = size

for region in dictionary_shells:
    sum = 0

    for size in dictionary_shells[region]:
        sum = sum + size

    average = sum/len(dictionary_shells[region])
    if len(dictionary_shells[region]) == 1:
        giantshell = sum
    elif len(dictionary_shells[region]) > 1:
        giantshell = sum - average

    print(f"{region} -> ", end ="")
    print(*dictionary_shells[region], sep=", ", end ="")
    print(f" ({math.ceil(giantshell)})")