# -*- coding: utf-8 -*-
#вводится 100 чисел. найти второй максимум из этих 100 чисел.

max_number = int(input())  #97
max2_number = int(input())  #95

if max_number < max2_number:
    max_number, max2_number = max2_number, max_number

for i in range(8):
    number = int(input()) # 96
    if number > max_number:
        max2_number = max_number
        max_number = number
    elif number > max2_number:
        max2_number = number

print(max2_number)