n = int(input())
a = list(map(int, input().split()))
b = list(set(a))

if len(b) != 3:
    if sum(a) == 0:
        pass
    elif a.count(max(b)) == 2*n/3 and a.count(0) == n/3:
        pass
    else:
        print("No")
        exit()
else:
    if b[0] ^ b[1] != b[2]:
        exit()
        
print("Yes")