# -*- coding: utf-8 -*-
# python template for atcoder1
import sys
sys.setrecursionlimit(10**9)
input = sys.stdin.readline

N = int(input())
mosters = list(map(int, input().split()))
# max,current
dp = [-float('inf')]*(1 << N)
dp[0] = 100

for mask in range(1 << N):
    for new_moster in range(N):
        # もう倒していたらpass
        if mask >> new_moster & 1:
            continue
        new_state = mask | 1 << new_moster

        if mosters[new_moster] > 0:  # kind moster
            # print("kind")
            current_maxHP = 100
            for m in range(N):
                if mask >> m & 1 == 1 or m == new_moster:
                    # 今までに倒したevil mosterだけmaxHPが上がっている
                    if mosters[m] < 0:
                        current_maxHP += 100
            dp[new_state] = max(dp[new_state],
                                min(dp[mask]+mosters[new_moster], current_maxHP))

        else:  # evil moster
            nextHP = dp[mask]+mosters[new_moster]
            if nextHP <= 0:
                # print("end")
                dp[new_state] = max(dp[new_state], -float('inf'))
            else:
                dp[new_state] = max(dp[new_state], nextHP)
ans = dp[-1]
if ans == -float('inf'):
    print(0)
else:
    print(ans)