#include using namespace std; #define int long long int N; signed main(){ cin>>N; vector A(N+1); for(int i = 0; i <= N; i++) cin>>A[i]; int cnt = 0; for(int i = 3; i <= N; i++) cnt += A[i]*(i-1); if(cnt == 0 && N >= 2) if(A[2] >= 1) cnt = 2; int rem = A[1] - cnt; bool flag = ((A[1] - cnt) % 2 == 0); if(rem >= N && ((rem - N)%2 == 0)) flag = true; if(rem >= N+1 && ((rem - N-1)%2 == 0)) flag = true; if(rem >= 0 && flag) cout << "Yes" << endl; else cout << "No" << endl; }