n = int(input())
a = tuple(map(int, input().split()))

if n == 3:
    if a[0] ^ a[2] == a[1] and a[1] ^ a[2] == a[0] and a[0] ^ a[1] == a[2]:
        print('Yes')
    else:
        print('No')
else:
    if len(set(a)) == 1:
        print('Yes')
    else:
        print('No')
