import sys

n = int(sys.stdin.readline().strip())
numbers = tuple(map(int, sys.stdin.readline().strip().split()))
kinds = set(numbers)


def answer(ans):
    print(ans)
    sys.exit()


if len(kinds) > 3:
    answer("No")

elif kinds == {0}:
    answer("Yes")

elif len(kinds) == 2:
    a, b = sorted(kinds)
    if a == 0:
        if numbers.count(a) * 3 == n:
            answer("Yes")
        else:
            answer("No")
    else:
        answer("No")

elif len(kinds) == 3:
    a, b, c = tuple(kinds)
    if (numbers.count(a) == numbers.count(b)) and (numbers.count(b) == numbers.count(c)):
        if a ^ b == c:
            answer("Yes")
        else:
            answer("No")
    else:
        answer("No")
