output_description: For each dataset, print the value in a line.
input_description: The input consists of multiple datasets. Each dataset is given in the
  following format.
  
      
      
      a op b
      
  
  The input ends with a dataset where op = '?'. Your program should not process
  for this dataset.
attempt: data = input()
  print(eval(data.replace("/", "//")))
  
problem_description: Simple Calculator
  
  Write a program which reads two integers a, b and an operator op, and then
  prints the value of a op b.
  
  The operator op is '+', '-', '*' or '/' (sum, difference, product or
  quotient). The division should truncate any fractional part.
samples: [{"input": "1 + 2\n    56 - 18\n    13 * 2\n    100 / 10\n    27 + 81\n    0 ? 0", "output": "3\n    38\n    26\n    10\n    108"}]