output_description: For each drink, calculate how many seconds it takes Joisino to solve all the
  problems if she takes that drink, and print the results, one per line.
  
  * * *
input_description: The input is given from Standard Input in the following format:
  
      
      
      N
      T_1 T_2 ... T_N
      M
      P_1 X_1
      P_2 X_2
      :
      P_M X_M
attempt: x = int(input())
  first = list(map(int, input().split()))
  drink_count = int(input())
  count = 0
  Total = sum(first)
  drink = [list(map(int, input().split())) for i in range(drink_count)]
  for T in range(drink_count):
      change_num = drink[count][0]
      score = first[change_num - 1] - drink[count][1]
      print(Total - score)
      count += 1
  
problem_description: Statement
  
  Joisino is about to compete in the final round of a certain programming
  competition. In this contest, there are N problems, numbered 1 through N.
  Joisino knows that it takes her T_i seconds to solve problem i(1≦i≦N).
  
  Also, there are M kinds of drinks offered to the contestants, numbered 1
  through M. If Joisino takes drink i(1≦i≦M), her brain will be stimulated and
  the time it takes for her to solve problem P_i will become X_i seconds. It
  does not affect the time to solve the other problems.
  
  A contestant is allowed to take exactly one of the drinks before the start of
  the contest. For each drink, Joisino wants to know how many seconds it takes
  her to solve all the problems if she takes that drink. Here, assume that the
  time it takes her to solve all the problems is equal to the sum of the time it
  takes for her to solve individual problems. Your task is to write a program to
  calculate it instead of her.
samples: [{"input": "3\n    2 1 4\n    2\n    1 1\n    2 3", "output": "6\n    9\n    \n\nIf Joisino takes drink 1, the time it takes her to solve each problem will be\n1, 1 and 4 seconds, respectively, totaling 6 seconds.\n\nIf Joisino takes drink 2, the time it takes her to solve each problem will be\n2, 3 and 4 seconds, respectively, totaling 9 seconds.\n\n* * *"}, {"input": "5\n    7 2 3 8 5\n    3\n    4 2\n    1 7\n    4 13", "output": "19\n    25\n    30"}]