Why am I failing the test? I am confused.

I am taking the test that happens after returning values. the question is divided into three parts. The first is create a function "square". The sec is define a single parameter "number". The third is in the body of function return the square passed in. My code reads as follows: def square(number):. answer = number * number. return answer. y_num = int(input("number ")). squared = square(y_num). print("your number squared is {}.".format(squared). My code is a whole working program, so I apologisze for my code. I know part of my problem is it is too long but I can't figure out how to shrink it to make me pass the question.

def square(number):
    answer = number * number
    return answer

y_num = int(input("number  "))

squared = square(y_yum)

print("Your number squared is {}".format(squared))