from collections import OrderedDict

N = int(input())

items_dict = OrderedDict()
for i in range(N):
    item_list = list(input().split())
    price = int(item_list[-1])
    item_list.pop()
    item_name = " ".join(item_list[::])
    
    if item_name in items_dict.keys():
        old_price = int(items_dict[item_name])
        new_price = old_price + price
        items_dict[item_name] = new_price
    else:
        items_dict[item_name] = price


for item in items_dict:
    print(item, items_dict[item])