n = int(input())
A = list(map(int, input().split()))
setA = set(A)
listSetA = list(setA)

if A == [0 for i in range(n)]:
    print("Yes")
elif len(setA) == 3 and listSetA[0] ^ listSetA[1] == listSetA[2] and A.count(listSetA[0]) == A.count(listSetA[1]) == A.count(listSetA[2]):
    print("Yes")
else:
    print("No")
