#include <algorithm>
#include <cfloat>
#include <climits>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <functional>
#include <iostream>
#include <map>
#include <memory>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <utility>
#include <vector>
 
using namespace std;
 
#define sz size()
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define all(c) (c).begin(), (c).end()
#define rep(i,a,b) for(int i=(a);i<(b);++i)
#define clr(a, b) memset((a), (b) ,sizeof(a))
 
#define MOD 1000000007
#define INF 1000000000

char dp[1001][100001][2];

int main(){
  int n;
  cin>>n;
  vector<int> v;
  rep(i,0,n){
    int a;
    cin>>a;
    v.pb(a);
  }
  dp[0][0][0]=1;
  rep(i,1,v.sz+1){
    rep(j,0,100001){
      // 取る
      dp[i][j+v[i-1]][1]=max(dp[i][j+v[i-1]][1],dp[i-1][j][0]);
      // 取らない
      dp[i][j][0] = max(dp[i][j][0],dp[i-1][j][0]);
      dp[i][j][0] = max(dp[i][j][0],dp[i-1][j][1]);
    }
  }
  int mx = 0;
  rep(i,0,100001){
    if(dp[v.sz][i][0]==1||dp[v.sz][i][1]==1){
      mx = max(mx,i);
    }
  }
  cout << mx << endl;
  return 0;
}