#!/usr/bin/env python3
# %%
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines


# %%
N, *M = map(int, read().split())

# %%
discount = [0]
for x in M:
    discount += [(x + y) % 1000 for y in discount]


# %%
INF = 10 ** 9
dp = [INF] * (1 << N)
dp[0] = 0
for n in range(1 << N):
    for i in range(N):
        if not ((n >> i) & 1):
            continue
        m = n - (1 << i)
        x = dp[m] + max(0, M[i] - discount[m])
        if dp[n] > x:
            dp[n] = x

# %%
print(dp[-1])