input: def nearest_whole_number(value):
      '''
      Develop a function that takes a string representation of a numerical value
      and returns the nearest whole number. If the value is evenly between 
      two numbers, it should round away from zero.
  
      Examples:
      >>> nearest_whole_number("10")
      10
      >>> nearest_whole_number("15.3")
      15
  
      Note:
      Rounding away from zero means that if the input value is exactly midway
      between two numbers, the function should return the number furthest
      from zero. For instance, nearest_whole_number("14.5") should return 15,
      and nearest_whole_number("-14.5") should return -15.
      '''
output:     value = float(value)
      import math
      if value > 0:
          return math.floor(value + 0.5)
      else:
          return math.ceil(value - 0.5)