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

N = int(input())
items = [int(input()) for _ in range(N)]

dp = [float('inf')]*(1 << N)
dp[0] = 0
for mask in range(1 << N):
    for new_item in range(N):
        if mask >> new_item & 1:
            # new item has already boudht
            continue
        bought_sum = 0
        for i in range(N):
            if mask >> i & 1:
                bought_sum += items[i]
        bought_sum %= 1000
        #bought_sum=sum([N[i] for i in range(N) if mask>>i&1])

        new_state = mask | 1 << new_item
        dp[new_state] = min(dp[new_state], dp[mask] +
                            max(0, items[new_item]-bought_sum))
print(dp[-1])