06. Max Number

import sys

command = input()
max_num = - sys.maxsize - 1

while command != 'Stop':
    current = int(command)
    if current > max_num:
        max_num = current
    command = input()

print(max_num)

Решение с масив:

numbers = []
command = input()

while command != 'Stop':
    numbers.append(int(command))
    command = input()

print(max(numbers))