var f,g:text;
    a,c,poz:array[0..10001] of longint;
    i,j,max,k,p,n:longint;
begin
assign(f,'scmax.in');reset(f);
assign(g,'scmax.out');rewrite(g);
read(f,n);
c[0]:=-1;
for i:=1 to n do begin
 read(f,a[i]);
 for j:=k downto 0 do
  if a[i]>c[j] then break;
 if j=k then begin
  inc(k);
  c[k]:=a[i];
  inc(p);
  poz[p]:=k;
  if max<poz[p] then max:=poz[p];
 end
  else begin
   inc(j);
   c[j]:=a[i];
   inc(p);
   poz[p]:=j;
   if max<poz[p] then max:=poz[p];
  end;
end;
writeln(g,max);
for i:=p downto 1 do begin
 if poz[i]=max then begin
  write(g,a[i],' ');
  dec(max);
 end;
 if max<=0 then break;
end;
close(f);
close(g);
end.