#include <bits/stdc++.h>
using namespace std;
int n;
int d[16];
int dp[1<<16];
int main(){
	cin>>n;
	for(int i=0;i<n;i++)	cin>>d[i];
	dp[0]=100;
	for(int i=0;i<(1<<n);i++){
		if(dp[i]==0)	continue;
		int mhp=100;
		for(int j=0;j<n;j++){
			if(i&(1<<j)&&d[j]<0)	mhp+=100;
		}
		for(int j=0;j<n;j++){
			if(i&(1<<j))	continue;
			dp[i|(1<<j)]=max(dp[i|(1<<j)],dp[i]+d[j]);
			dp[i|(1<<j)]=min(dp[i|(1<<j)],(d[j]<0)?mhp+100:mhp);
		}
	}
	cout<<dp[(1<<n)-1]<<endl;
	return 0;
}