Untitled

int main() {
    int n;
    cin >> n;
    int a[n];
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    long long s = 0, d = 0;
    int i = 0, j = n - 1;
    bool turn = true;
    for (;;) {
        if (turn) {
            if (a[i] >= a[j]) {
                s += a[i];
                i++;
            } else {
                s += a[j];
                j--;
            }
        } else {
            if (a[i] >= a[j]) {
                d += a[i];
                i++;
            } else {
                d += a[j];
                j--;
            }
        }
        turn = !turn;
        if (i > j)break;
    }
    cout << s << " " << d << endl;
 
    return 0;
}