#include <bits/stdc++.h>

int main() {
	
	int N;
	std::cin >> N;
	std::vector<int> M(N);
	for(auto&v:M)std::cin >> v;
	int n = 1<<N;
	std::vector<int> dp(n,INT_MAX);
	dp[0]=0;
	for(int x=0;x<n;++x){
		int sum = 0;
		for(int i=0;i<N;++i)
			if(x&(1<<i))(sum+=M[i])%=1000;
		for(int i=0;i<N;++i){
			if(x&(1<<i))continue;
			int v = x|(1<<i);
			dp[v] = std::min(dp[v],dp[x]+std::max(M[i]-sum,0));
		}
	}
	int ans = dp[n-1];
	std::cout << ans << std::endl;
}