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

target_sum = a[0] + a[n-1]
is_kirk = True

for i in range(n):
    if a[i] + a[n-1-i] != target_sum:
        is_kirk = False
        break

if is_kirk:
    print("Yes")
else:
    print("No")