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

#define rep(i, n) REP(i, 0, n)
#define ALL(v) v.begin(), v.end()
#define MSG(a) cout << #a << " " << a << endl;
#define REP(i, x, n) for (int i = x; i < n; i++)
#define OP(m) cout << m << endl
typedef long long ll;
typedef unsigned long long ull;

int main()
{
    int n;
    while (cin >> n, n)
    {
        vector<ll> a(n);
        rep(i, n) cin >> a[i];
        sort(ALL(a));
        vector<ll> s(n + 1);
        s[0] = 0;
        rep(i, n) s[i + 1] = s[i] + a[i];
        ll ans = 0;
        rep(i, n) ans += s[i];
        OP(ans);
    }
    return 0;
}
