N = int(input())
A = list(map(int, input().split()))
p, m = 0, 0
S = sum(A)
if S % N != 0:
    print("No")
    exit()
    
S //= N
for a in A:
    if a <= S:
        p += S - a
    else:
        d = a - S
        m += d 
        
print("Yes") if p == m else print("No")