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#include <iostream>
#include <queue>
using namespace std;
int main() {
int n;
cin >> n;
priority_queue<int> q;
while (n--) {
int x;
cin >> x;
q.push(-x);
}
int res = 0;
while (q.size() > 1) {
int a = q.top();
q.pop();
int b = q.top();
q.pop();
res -= a + b;
q.push(a + b);
}
printf("%d\n", res);
return 0;
}