#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /// C Header Files #include #include #include #include #include #include #include using namespace std; typedef pair pii; typedef pair piii; #define SET(a) memset( a, -1, sizeof a ) #define CLR(a) memset( a, 0, sizeof a ) #define MEM(a,val) memset( a, val, sizeof(a) ) #define pb push_back #define all(x) (x).begin(), (x).end() #define sz(a) int((a).size()) #define ff first #define ss second #define mp make_pair #define nl "\n" vector ar; int main() { int n; cin>>n; long long ans = 0; for(int i = 0 ; i < n; i++) { int x; cin>>x; ar.pb(x); } sort(all(ar), greater()); for(int i = 0 ; i < ar.size(); i++) ans += (1LL<