N = int(input())
A = list(map(int, input().split()))
num = A.count(0)

A.sort()
d = 10**16

for i in range(N-1):
    if A[i+1] == 0:
        continue
    tmp = A[i+1] - A[i]
    d = min(tmp,d)
A.reverse()

ans = "Yes"
for i in range(N-1):
    if A[i+1] == 0:
        continue
    if A[i+1] - A[i] == d:
        continue
    if (A[i] - A[i+1])%d != 0:
        ans = "No"
        break
    else:
        num -= (A[i] - A[i+1])//d - 1

print(ans if num >= 0 else "No")