#include<bits/stdc++.h>
using namespace std;
#define int long long
#define REP(i,m,n) for(int i=(m);i<(n);i++)
#define rep(i,n) REP(i,0,n)
#define pb push_back
#define all(a) a.begin(),a.end()
#define rall(c) (c).rbegin(),(c).rend()
#define mp make_pair
#define endl '\n'
#define vec vector<ll>
#define mat vector<vector<ll> >
#define fi first
#define se second
typedef long long ll;
typedef pair<ll,ll> pll;
typedef long double ld;
const ll inf=1e9+7;
const ll mod=998244353;
signed main(){
    ll n;cin>>n;
    ll s,t;cin>>s>>t;
    s--;t--;
    vector<ll>a(n);
    ll cnt=0;
    ll sum=0;
    rep(i,n){
        cin>>a[i];
        sum+=a[i];
    }
    if(n%2){
        rep(i,n){
            ll x=min(abs(i-s),n-abs(i-s));
            ll y=min(abs(i-t),n-abs(i-t));
            if(x<=y)cnt+=a[i];
        }
    }else{
        vector<ll>b(0);
        rep(i,n){
            ll x=min(abs(i-s),n-abs(i-s));
            ll y=min(abs(i-t),n-abs(i-t));
            if(x<y)cnt+=a[i];
            else if(x==y){
                b.pb(a[i]);
            }
            //cout<<x<<' '<<y<<endl;
        }
        if(b.size()){
            cnt+=max(b[0],b[1]);
        }
    }
    //cout<<cnt<<endl;
    cout<<2*cnt-sum<<endl;
}