local mod = 998244353
local mfl = math.floor
local function bmul(x, y)
  local x0, y0 = x % 31596, y % 31596
  local x1, y1 = mfl(x / 31596), mfl(y / 31596)
  return (x1 * y1 * 62863 + (x1 * y0 + x0 * y1) * 31596 + x0 * y0) % mod
end
local function modpow(src, pow)
  local res = 1
  while 0 < pow do
    if pow % 2 == 1 then
      res = bmul(res, src)
      pow = pow - 1
    end
    src = bmul(src, src)
    pow = mfl(pow / 2)
  end
  return res
end


local n, m = io.read("*n", "*n")
local a = {}
for i = 1, n do
  a[i] = io.read("*n")
end
local b = {}
for i = 1, m do
  b[i] = io.read("*n")
end
for i = 1, 20 do
  local az = 0
  for j = 1, n do
    az = az + a[j] % 2
    a[j] = mfl(a[j] / 2)
  end
  local bz = 0
  for j = 1, m do
    bz = bz + b[j] % 2
    b[j] = mfl(b[j] / 2)
  end
  if (az + bz) % 2 == 1 then print(0) os.exit() end
end
if n == 1 or m == 1 then
  print(1)
else
  print(modpow(2, (n - 1) * (m - 1) * 20))
end