#include <bits/stdc++.h>
using namespace std;

int main() {
    int n, s, t;
    cin >> n >> s >> t;
    s--; t--;
    vector<int64_t> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a.at(i);
    }
    
    auto distance = [n](int k, int l) {
        return min(abs(k - l), n - abs(k - l));
    };
    
    int64_t s_315 = 0, s_8128 = 0;
    vector<int64_t> neutral;
    for (int i = 0; i < n; i++) {
        int d_315 = distance(i, s), d_8128 = distance(i, t);
        if (d_315 < d_8128) {
            s_315 += a.at(i);
        } else if (d_315 > d_8128) {
            s_8128 += a.at(i);
        } else {
            neutral.push_back(a.at(i));
        }
    }
    sort(neutral.rbegin(), neutral.rend());
    
    for (int i = 0; i < neutral.size(); i++) {
        if (i == 0) {
            s_315 += neutral.at(i);
        } else {
            s_8128 += neutral.at(i);
        }
    }
    
    cout << s_315 - s_8128 << endl;
}