Can someone tell me how I can fix my code? It is saying variable y is not defined?
import math

def main():

y = int( input("Enter year: "))

a = (y % 19)

b = (y // 100)
c = (y%100)

d = (b //4)
e = (b%4)

g = ((8 * b + 13)//25)

h = ((10 * a + b - d - g + 15)% 30)

j = (c // 4)
k = (c%4)

m = ((a + 11 * h)//319)

r = ((2 * a + 2 * j - k - h + m + 32)% 7)

n = ((h - m + r + 90) // 25)

p = ((h - m + r + n + 19)% 32)

print("Easter Sunday will be on day {} of the month {}," ,format(p, n))

main()

You are to write a series of steps that anyone could follow to solve the following three problems: 1. even odd a. assume that someone tells you a number (an integer number) b. you hear the number and respond with the word even or odd 2. average a. assume that someone tells you between 3 and 5 numeric values. b. you hear the numbers and respond with the average is some number 3. dog or cat a. explain to a child the differences between a dog and a cat. b. your explanation could be used by a child or anyone to distinguish the difference between a dog and a cat