#!/usr/bin/python3
# -*- coding: utf-8 -*-

from typing import List


def find_max(L: List[int]) -> int:
    max = 0
    for x in L:
        if x > max:
            max = x
    return max


print(find_max([11, 23, 58, 31, 56, 77, 43, 12, 65, 19]))