from collections import OrderedDict

dic = OrderedDict()

for i in range(int(input())):
    lst = input().split()
    k = ' '.join(lst[0:len(lst) - 1])
    v = lst[len(lst) - 1]

    if k in dic:
        dic[k] += int(v)
    else:
        dic[k] = int(v)
        
for k,v in dic.items():
    print(k, v)

from collections import OrderedDict
# Enter your code here. Read input from STDIN. Print output to STDOUT
N = int(input())
item_dict = OrderedDict()
for i in range(N):
    tmpl = input().split()
    size = len(tmpl)
    item = ' '.join(tmpl[:size-1])
    price = int(tmpl[size-1])
    if item in item_dict:
        item_dict[item] = item_dict[item] + price
    else:
        item_dict[item] = price
[print(i, p) for i,p in item_dict.items()]

from collections import OrderedDict

N = int(input())
items_sold = OrderedDict()

for _ in range(N):
    *item_name, net_price = input().split()
    item_name = ' '.join(item_name)

    if item_name in items_sold:
        items_sold[item_name] += int(net_price)
    else: 
        items_sold[item_name] = int(net_price)

for item_name, net_price in items_sold.items():
    print(f"{item_name} {net_price}")

from collections import OrderedDict
my_dict = OrderedDict()
for _ in range(int(input())):
    *item, price = input().split()
    item = ' '.join(item)
    if item not in my_dict.keys():
        my_dict[item] = int(price)
    else:
        my_dict[item] += int(price)
for key in my_dict:
    print(key, my_dict[key])