def main():
    number = int(input("Enter a number:"))
    limit = square(number)
    print("Counting up to", limit)
    countto(limit)

def square(x):
    return x ** 2

def countto(number):
    # Not the same as the number variable in main!
    for i in range(1, number):
        print(i, end = ", ")
    print(number)

main()