import sys

N = int(input())
a = list(map(int, input().split()))
 
x = 0
y = 0
z = 0
 
if N % 3 != 0:
  print('No')
 
else:
 
  for i in range(N):
    if a[i] != x and a[i] != y and a[i] != z:
      if x == 0:
        x = a[i]
        continue
      elif y == 0:
        y = a[i]
        continue
      elif z == 0:
        z = a[i]
        continue
      else:
        print('No')
        sys.exit()
  
  if x ^ y == z and a.count(x) == a.count(y) and a.count(y) == a.count(z):
    print('Yes')
  else:
    print('No')