local mmi, mma = math.min, math.max
local bxor = bit.bxor
local n, x = io.read("*n", "*n")
local a = {}
local b = {}
local c = {}
local t = {}
for i = 1, n do
  a[i] = io.read("*n")
  b[i] = bxor(a[i], x)
  c[i] = mmi(a[i], b[i])
  t[i] = i
end
table.sort(t, function(x, y) return c[x] < c[y] end)

for i = 1, n - 1 do
  if a[t[i]] >= b[t[i + 1]] then
    print("No") os.exit()
  end
  if b[t[i]] >= a[t[i + 1]] then
    print("No") os.exit()
  end
end
print("Yes")