n = int(input())
a = list(map(int, input().split()))

sum_b = 0
possible = True

for i in range(n, 0, -1):
    current_a = a[i-1]
    total = current_a + sum_b
    if total % i != 0:
        possible = False
        break
    b = total // i
    sum_b += b

print("Yes" if possible else "No")