local mmi, mma = math.min, math.max
local mfl = math.floor

local function get_ary_from_idx(idx, n)
  idx = idx - 1
  local box = {}
  for i = 1, n do box[i] = true end
  local rettbl = {}
  for i = n, 1, -1 do
    local pos = idx % i + 1
    idx = mfl(idx / i)
    local cnt = 0
    for j = 1, n do
      if box[j] then
        cnt = cnt + 1
        if cnt == pos then
          box[j] = false
          table.insert(rettbl, j)
          break
        end
      end
    end
  end
  return rettbl
end

local n = io.read("*n")
local a = {}
for i = 1, n do
  a[i] = io.read("*n")
end
local b = {}
for i = 1, n do
  b[i] = io.read("*n")
end

local retval, retcnt = -1, 0
local allpat = 1
for i = 1, n do
  allpat = allpat * i
end
for i = 1, allpat do
  local z = get_ary_from_idx(i, n)
  local v = 0
  for j = 1, n do
    v = v + mma(0, a[z[j]] - b[j])
  end
  if retval < v then
    retval, retcnt = v, 1
  elseif retval == v then
    retcnt = retcnt + 1
  end
end
print(retcnt)