def sum_of_sales(values_of_sales):
  sales_list = values_of_sales.split(' ')
  new_list_of_sales = [int(item) for item in sales_list]
  total = 0
  for value in new_list_of_sales:
    total += value
  return total 
  
sales = input('Enter the value of each sale separated by a space: ')
print(f'The total sales were: {sum_of_sales(sales)}')
Ainda preciso estudar a documentação para me familiarizar com funções do python, como usado na opinião do instrutor
 
            