#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

int bitDP[1<<15];

int main() {
	int n;
	cin>>n;
	vector<int> m;
	m.resize(n);
	for(int i=0;i<n;i++){
		cin>>m[i];
	}
	for(int i=0;i<(1<<n);i++){
		bitDP[i]=1<<20;
	}
	bitDP[0]=0;
	for(int i=0;i<(1<<n);i++){
		int total=0;
		for(int j=0;j<n;j++){
			if(i & (1<<j)) total+=m[j];
		}
		total%=1000;
		for(int j=0;j<n;j++){
			if(i&(1<<j)) continue;
			bitDP[i | (1<<j)] = min(bitDP[i | (1<<j)], bitDP[i] + max(0,m[j] - total));
		}
	}
	
	cout<<bitDP[(1<<n)-1]<<endl;
	return 0;
}