#include using namespace std; typedef long long ll; typedef pair PII; const int MM = 1e9 + 7; const double eps = 1e-8; const int MAXN = 2e6 + 10; int n, m; void prework(){ } void read(){ } ll ans; ll gao(ll x, ll y, ll l, ll r){ return min(x * l + y, x * r + y); } int a[MAXN]; void solve(int casi){ // cout << "Case #" << casi << ": "; cin >> n; for (int i = 1; i <= n; i++) cin >> a[i]; sort(a + 1, a + n + 1); ll x = -n, y = 0; // |a[i] - x| for (int i = 1; i <= n; i++) y += a[i]; ans = gao(x, y, a[1], a[1]); for (int i = 2; i <= n; i++){ // s + a[i-1] - x // s + x - a[i-1] x += 2; y -= 2 * a[i-1]; ans = min(ans , gao(x, y, a[i-1], a[i])); } cout << ans << endl; } void printans(){ } int main(){ std::ios::sync_with_stdio(false); prework(); int T = 1; // cin>>T; for(int i = 1; i <= T; i++){ read(); solve(i); printans(); } return 0; }