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

def calc(a) -> bool:
    s = sum(a)
    if s % len(a) != 0: return False

    m = s // len(a)
    x = 0
    for e in a:
        x += e - m
    return x == 0

if calc(a):
    print('Yes')
else:
    print('No')