import std.algorithm, std.container, std.conv, std.math, std.range, std.typecons, std.stdio, std.string;

auto rdsp(){return readln.splitter;}
void pick(R,T)(ref R r,ref T t){t=r.front.to!T;r.popFront;}
void readV(T...)(ref T t){auto r=rdsp;foreach(ref v;t)pick(r,v);}
void readA(T)(size_t n,ref T[]t){t=new T[](n);auto r=rdsp;foreach(ref v;t)pick(r,v);}
void readC(T...)(size_t n,ref T t){foreach(ref v;t)v=new typeof(v)(n);foreach(i;0..n){auto r=rdsp;foreach(ref v;t)pick(r,v[i]);}}

void main()
{
  int n; readV(n);
  int[] a; readA(n, a);
  int[] l, r; readC(n, l, r);

  struct B { int x, i, t; }
  auto b = new B[](n*2);
  foreach (i; 0..n) {
    b[i] = B(a[i], i, 0);
    b[i+n] = B(a[i]-l[i], i, 1);
  }
  b.sort!"a.x == b.x ? a.t > b.t : a.x < b.x";

  auto as = a.assumeSorted, ft = new FenwickTree!int(n), ans = 0L;

  foreach (bi; b) {
    auto i = bi.i;
    switch (bi.t) {
    case 0:
      auto k = as.lowerBound(a[i]+r[i]+1).length.to!int;
      ans += ft[i+1..k];
      break;
    case 1:
      ++ft[i];
      break;
    default:
      assert(0);
    }
  }

  writeln(ans);
}

class FenwickTree(T)
{
  const size_t n;
  T[] buf;

  this(size_t n)
  {
    this.n = n;
    this.buf = new T[](n+1);
  }

  void opIndexOpAssign(string op)(T val, size_t i) if (op == "+" || op == "-")
  {
    ++i;
    for (; i <= n; i += i & -i) mixin("buf[i] " ~ op ~ "= val;");
  }

  void opIndexUnary(string op)(size_t i) if (op == "++" || op == "--")
  {
    ++i;
    for (; i <= n; i += i & -i) mixin("buf[i]" ~ op ~ ";");
  }

  pure T opSlice(size_t r, size_t l) { return get(l) - get(r); }
  pure T opIndex(size_t i) { return opSlice(i, i+1); }
  pure size_t opDollar() { return n; }

private:

  pure T get(size_t i)
  {
    auto s = T(0);
    for (; i > 0; i -= i & -i) s += buf[i];
    return s;
  }
}