#!/usr/bin/python3
import random

def main():
	func_code="""
def find_max(lst):
	if not lst: return None
	m=lst[0]
	for x in lst:
		if x>m: m=x
	return m
"""
	try:
		exec(func_code)

		random_list=[random.randrange(1,11) for _ in range(10)]
		print(f"Λίστα:{random_list}")

		maximum=locals()['find_max'](random_list)
		print(f"Μέγιστο:{maximum}")

	except Exception as e:
		print(f"Σφάλμα: {e}")

if __name__=="__main__":
	main()