#include #include #include using namespace std; using ll = long long; int main() { cin.tie(0)->sync_with_stdio(0); int n; cin >> n; vector a(n + 1); ll tv = 0; ll sum = 0; for (int i = 0; i <= n; ++i) { cin >> a[i]; tv += a[i]; sum += i * a[i]; } if (sum == 0) { cout << "Yes\n"; return 0; } ll req = 2; for (int i = 2; i <= n; ++i) { req += (ll)(i - 2) * a[i]; } if (a[1] >= req && sum % 2 == 0) { cout << "Yes\n"; } else { cout << "No\n"; } return 0; }