Following is the python program :
Python program:
def is_subtract(a,b):
sub = x-y
return sub
a = int(input('enter the first number'))
b=int(input('enter the second number'))
if(a>b)
return sub
elif(b>a)
return sub
What is a function in python?
Any time a function is invoked, it only ever runs its code. Parameters are one type of data that a function can accept. A function can therefore return data. In Python, a function is a collection of connected statements that carry out a single action. Our program is divided into smaller, more modular portions with the use of functions. Functions keep our program orderly and manageable as it expands in size. It also makes the code reusable and does away with repetition.
Hence to conclude function helps in repeating the code.
To know more on functions follow this link:
https://brainly.com/question/25755578
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