program patrate2;
var f,g:text;
    n,i:longint;
    p:int64;
begin
assign(f,'patrate2.in');
assign(g,'patrate2.out');
reset(f);
rewrite(g);
read(f,n);
if (n=1)then write(g,'2') else
begin
  p:=1;
  for i:=2 to n do p:=p*i;
  p:=p*n*n*n*n;
  write(g,p);
end;
close(f);
close(g);
end.