# No.286 Modulo Discount Store



def main():

    N = int(input())

    stores = [int(input()) for _ in range(N)]
    mod = 1000
    INF = float('INF')

    dp = [INF]*2**N

    dp[0] = 0

    for mask in range(2**N):
        for i in range(N):
            if not (mask >> i & 1):
                tot = 0
                for j in range(N):
                    if mask >> j & 1:
                        tot += stores[j]
                
                dp[mask + (1<<i)] = min(dp[mask + (1<<i)], dp[mask] + max(0,stores[i]-(tot % mod)))

    print(dp[-1])


if __name__ == '__main__':
    main()