h, w = io.read("*n", "*n")
if h % 2 == 0 and w % 2 == 0 then
  print(h * w)
  for i = 1, h do
    print(string.rep("1 ", w - 1) .. "1")
  end
elseif h % 2 == 0 then
  print(h * (w - 1))
  for i = 1, h do
    print(string.rep("1 ", w - 1) .. "0")
  end
elseif w % 2 == 0 then
  print(w * (h - 1))
  for i = 1, h - 1 do
    print(string.rep("1 ", w - 1) .. "1")
  end
  print(string.rep("0 ", w - 1) .. "0")
elseif h < w then
  print(h * w - w)
  local t = {}
  for i = 1, h - 1 do
    for j = 1, w do
      t[j] = i == j and 0 or 1
    end
    print(table.concat(t, " "))
  end
  for j = 1, w do
    t[j] = h <= j and 0 or 1
  end
  print(table.concat(t, " "))
else
  print(h * w - h)
  local t = {}
  for i = 1, w do
    for j = 1, w do
      t[j] = i == j and 0 or 1
    end
    print(table.concat(t, " "))
  end
  for j = 1, w - 1 do
    t[j] = 1
  end
  t[w] = 0
  for i = w + 1, h do
    print(table.concat(t, " "))
  end
end