def sqr(n):
    return n * n

def fact(n):
    total = 1
    for i in range(2, n+1):
        total *= i
    return total

if __name__ == '__main__':
    num = 5
    print(f'square of {num} is {sqr(num)}')
    print(f'factorial of {num} is {fact(num)}')