n = int(input())
A = list(map(int, input().split()))
A.sort()
B = list(set(A))
if len(B) >= 4:
  print('No')
else:
  if B[-1] == 0:
    print('Yes')
  elif A.count(0) == n/3 and len(B) == 2:
    print('Yes')
  elif B[0]^B[1]^B[2] == 0 and A.count(B[0]) == A.count(B[1]) == n/3:
    print('Yes')
  else:
    print('No')