def col_net(): n = int(input()) dic = {} lis = [] for _ in range(n): line = input().strip() item,price = line.rsplit(' ',1) price = int(price)

    if item in dic:
        dic[item]['quantity'] += 1
    else:
        dic[item] = {'quantity':1,'price':price}
        lis.append(item)

for item in lis:
   net_price = dic[item]['quantity'] * dic[item]['price']
   print(f"{item} {net_price}")

col_net()