# returns a value

def add(number1, number2, number3 = 0):
    return number1 + number2 + number3 


result = add(5, 4, 2)
print(result) # 11
689651bef10aa7f61271bcf25f7641562cee31f5
<mask token>

def add(number1, number2, number3=0):
    return number1 + number2 + number3


<mask token>

def add(number1, number2, number3=0):
    return number1 + number2 + number3


<mask token>
print(result)

def add(number1, number2, number3=0):
    return number1 + number2 + number3


result = add(5, 4, 2)
print(result)

# returns a value

def add(number1, number2, number3 = 0):
    return number1 + number2 + number3 


result = add(5, 4, 2)
print(result) # 11