#include <bits/stdc++.h>
using namespace std;
int main(){
    int n;
    while (cin >> n){
        priority_queue<int>Q;
        for (int i = 0; i < n; ++i) {
            int x;
            cin >> x;
            Q.push(x);
        }
        int cnt = 0;
        for(int i = 1; i < n; i++){
            int a = Q.top();
            Q.pop();
            int b = Q.top();
            Q.pop();
            int c = min(a, b);
            cnt += c;
            Q.push(c);
        }
        cout << cnt << endl;
    }
}