import numpy as np

n = int(input())
arr = list(map(int,input().split()))
d = {}

for a in arr:
    if a not in d:
        d[a] = 1

if len(d) != 3:
    print("No")
else:
    tar = [0,0,0]
    temp = 0
    for key in d.keys():
        tar[temp] = key
        temp+=1
    x1 = tar[0]^tar[1]
    x2 = tar[1]^tar[2]
    x3 = tar[0]^tar[2]

    if x1 == tar[2] or x2 == tar[0] or x3== tar[1]:
        print("Yes")
    else:
        print("No")
