import sys

sys.setrecursionlimit(10 ** 6)
def II(): return int(sys.stdin.readline())
def LI(): return list(map(int, sys.stdin.readline().split()))

def main():
    n=II()
    dd=LI()
    dp=[0]*(1<<n)
    dp[0]=100
    for bit in range(1<<n):
        pre=dp[bit]
        if pre==0:continue
        up=sum(dd[i]<0 for i in range(n) if bit&1<<i)
        for j in range(n):
            if bit&1<<j:continue
            if dd[j]>0:
                v=min(100+100*up,pre+dd[j])
            else:
                v=pre+dd[j]
            if v>dp[bit|1<<j]:dp[bit|1<<j]=v
    print(dp[-1])



main()