n = int(input())
a = list(map(int, input().split()))
s = 0
possible = True

for j in range(n, 0, -1):
    current = a[j-1]
    total = current + s
    if total % j != 0:
        possible = False
        break
    k = total // j
    s += k

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