#int(input())
#map(int, input().split())
#list(map(int, input().split()))

N = int(input())
A = list(map(int, input().split()))

s = sum(A)

if s % N != 0:
    print("No")
else:
    t = min(A)
    f = 1
    for i in range(N):
        if (A[i] - t) % N != 0:
            f = 0
            break
    if f == 1:
        print("Yes")
    else:
        print("No")