from collections import OrderedDict
n = int(input())
ItemPriceDic = OrderedDict()
for _ in range(n):
    Inp = input().split()
    item_name = ' '.join(Inp[:-1])
    item_price = int(Inp[-1])
    if item_name in ItemPriceDic.keys():
        ItemPriceDic[item_name] += item_price
    else:
        ItemPriceDic[item_name] = item_price
        
for i in ItemPriceDic:
    print(' '.join(map(str,(i,ItemPriceDic[i]))))

from collections import OrderedDict
purchases = OrderedDict()
N = int(input())

for _ in range(N):
    inputs = input().split()
    item = ' '.join(inputs[:-1])
    try:
        purchases[item] += int(inputs[-1])
    except KeyError:
        purchases[item] = int(inputs[-1])

for item, price in purchases.items():
    print(item, price)

from collections import OrderedDict

N=int(input())
od=OrderedDict()
for _ in range(N):
    line=input().split()
    item,price=' '.join(line[:-1]),int(line[-1])
    od[item]=od.get(item, 0)+int(price)

for item,price in od.items():
    print(item,price)
    
    

from collections import OrderedDict
no_of_order = int(input())
orders = OrderedDict()
for _ in range(no_of_order):
    order = input().split()
    price = int(order[-1])
    order.remove(order[-1])
    if ' '.join(order) in orders:
        orders[' '.join(order)] += price
    else:
        orders[' '.join(order)] = price
for item, net_price in orders.items():
    print(item,net_price)

from collections import OrderedDict

dic = OrderedDict()
n = int(input())

for i in range(n):
    line = input().rsplit(" ", 1)
    item = line[0]
    price = int(line[1])
    
    if item not in dic.keys():
        dic[item] = price
    else:
        dic[item] += price

for k, v in dic.items():
    print(k, v)