N = int(input())
M = [0] * N
for i in range(N):
    M[i] = int(input())
    
inf = 10 ** 18
dp = [inf] * (1 << N)
dp[0] = 0
for s in range(1 << N):
    m = 0
    for i in range(N):
        if (s >> i) & 1:
            m += M[i]
            m %= 1000
    for i in range(N):
        if (s >> i)&1:
            continue
        ns = s | (1 << i)
        v = max(0, M[i] - m)
        dp[ns] = min(dp[ns], dp[s] + v)

print(dp[(1 << N) - 1])