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

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

void main()
{
  int n; readV(n);
  int[] a; readA(n, a);
  int[] b; readA(n, b);
  int[] c; readA(n, c);

  auto as = a.sort(), cs = c.sort();

  auto r = 0L;
  foreach (bi; b)
    r += as.lowerBound(bi).length * cs.upperBound(bi).length;

  writeln(r);
}
