#include <bits/stdc++.h>
using namespace std;
#define int long long
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define show(x) cout << #x << " " << x << "\n";
#define showds(x) cout << #x << " "; for(auto y : x) cout << y << " "; cout << "\n";
typedef pair<int, int> ii;
bool cmp(ii a, ii b) {
if (a.fi==b.fi) return a.se<b.se;
return a.fi<b.fi;
}
signed main() {
ios_base::sync_with_stdio(false); cin.tie(0);
int n; cin >> n;
int a[n], ans=0, m=0;
for (int i=0; i<n; i++) {
cin >> a[i];
ans+=a[i];
if (i<=n/2) m+=a[i];
}
m-=a[0];
//show(m)
int mm=m;
for (int i=n/2+1, j=1; i<n; i++, j++) {
mm=mm-a[j]+a[i], m=max(m, mm);
//show(mm)
}
//show(m)
cout << ans-m;
return 0;
}
