N = int(input())
A = list(map(int, input().split()))
V = sum(A)
E = 2 * V - 2

B = sum([i * A[i] for i in range(N + 1)])
print(E, B)

if E >= B and (E - B) & 1 == 0:
    print("Yes")
else:
    print("No")