output_description: For each pair of input integers A and B, you must output the sum of A and B in
  one line.
input_description: The input will consist of a series of pairs of integers A and B separated by a
  space, one pair of integers per line. The input will be terminated by EOF.
attempt: print(sum(list(map(int, input().split))))
  
problem_description: A + B Problem
  
  Compute A + B.
samples: [{"input": "2\n    10 5\n    100 20", "output": "15\n    120"}]