function

def happy_birthday(name, age):
    print (f" Happy Birthday to {name}")
    print (f"You are {age}years old")
happy_birthday("Angus", "25")
happy_birthday ("Bee", "30")
happy_birthday("Chloe", "40")
        
def add( x,y):
    z = x+y
    return z
def sub(x,y):
    z = x-y
    return z
def mult(x,y):
    z = x*y
    return z
def divide(x,y):
    z= x/y
    return z
    
print (add(6,4))
print (sub(6,4))
print (divide(6,4))
print (mult(6,4))