记录编号	21818	评测结果	AAAAAAAAAA
题目名称	矩形分割	最终得分	100
用户昵称	magic	是否通过	通过
代码语言	Pascal	运行时间	0.011 s
提交时间	2010-11-15 16:45:39	内存使用	23.99 MiB

program gls;

var
m,n,i,j,k,heng,shu,min:longint;
a,b:array[0..2500]of longint;
ss:array[0..2500,0..2500]of longint;
f,g:text;
  procedure Sorta(l, r: longint);
var
  i, j, x, y,yy: longint;
begin
  i := l; j := r; x := a[(l+r) DIV 2];
  repeat
    while a[i] < x do i := i + 1;
    while x < a[j] do j := j - 1;
    if i <= j then
    begin
      y := a[i]; a[i] := a[j]; a[j] := y;
      yy:= b[i]; b[i] := b[j]; b[j] :=yy;
      i := i + 1; j := j - 1;
    end;
  until i > j;
  if l < j then Sorta(l, j);
  if i < r then Sorta(i, r);
end;


begin
 assign(f,'cut.in');reset(f);
 assign(g,'cut.out');rewrite(g);
 readln(f,m,n);
 for i:=1 to m-1 do begin read(f,a[i]);b[i]:=1; end;
 for i:=m to m+n-2 do begin read(f,a[i]);b[i]:=2; end;
 sorta(1,m+n-2);
 heng:=1;
 shu :=1;
 for k:=m+n-2 downto 1 do
 begin if b[k]=1 then begin inc(heng);min:=min+a[k]*shu;end;
       if b[k]=2 then begin inc(shu);min:=min+a[k]*heng; end;

  end;


      writeln(g,min);









close(f);close(g);
end.