n = int(input())
l = list(map(int,input().split()))
j = 0
u = []
v = [0]*3
for i in l:
    if not i in u :
        u.append(i)
    v[u.index(i)] += 1
    if len(u) > 3:
        break
#print(u,v)
if len(u) == 3:
    if ((n%3 == 0) and (u[0] ^ u[2] == u[1]) and (v[0] == v[1] and v[1] == v[2]) and not len(u) > 3 and not 0 in u):
        j = 1
elif len(u) == 2:
    if 0 in u:
        if u[0] == 0 :
            b = u[1]
        else :
            b = u[0]
        if v[u.index(0)] * 2 == v[u.index(b)]:
            j = 1
if j == 1 :
    print("Yes")
else :
    print("No")

#print(l[0] ^ l[2] == l[1],n == 3)
"""01
10
11
01
10
11

01
00
01
01
00
01
"""
