input: Write a function that takes in a dictionary (string → integer) and returns the sum of all values in the dictionary.
  
  def compute_dict_sum(input_dict):
      result = 0
      for val in input_dict.values():
          result += val
      return result
  
  assert compute_dict_sum({"a": 5, "b": 10, "c": 15}) == 30
  assert compute_dict_sum({"x": 1}) == 1
  assert compute_dict_sum({}) == 0
  assert compute_dict_sum({"p": 7, "q": 3, "r": 10}) == 20
output: def compute_dict_sum(input_dict):
      result = 0
      for val in input_dict.values():
          result += val
      return result