def procedural_abstraction(numbers):
    if not numbers:
        return 0  
    
    total = sum(numbers)
    average = total / len(numbers)
    return average

my_numbers = [10, 20, 30, 40, 50]
result = procedural_abstraction(my_numbers)
print(f"The average of the numbers is: {result}")

def summing_machine(first_number, second_number):
    return first_number + second_number

result = summing_machine(7, 5)

print(f"The sum of 7 and 5 is: {result}")