N = int(input())
Ms = [int(input()) for i in range(N)]
dp = [float('inf')] * (1 << N)
dp[0] = 0
discount = [0] * (1 << N)
full = (1 << N) - 1
for m in range(N):
    msb = 1 << m
    for mask in range(1 << m):
        discount[msb + mask] = (discount[mask] + Ms[m]) % 1000
frontiers = [0]
for m in range(N):
    new_frontiers = []
    for f in frontiers:
        dpf = dp[f]
        dsc = discount[f]
        for idx in range(N):
            bit = 1 << idx
            if bit & f:
                continue
            nf = bit | f
            if dp[nf] == float('inf'):
                new_frontiers.append(nf)
            dp[nf] = min(dp[nf], dpf + max(0, Ms[idx] - dsc))
    frontiers = new_frontiers
print(dp[full])