var a:array[1..20000000] of longint;
    b:array[0..22] of longint;
    st,dr,z,i,x,y,n,max,j:longint;
    f,g:text;

procedure fill;
 var poz:longint;
 begin
  poz:=1;
  for j:=b[0] downto 2 do begin
   poz:=poz shl 1+b[j];
   a[poz]:=-1;
  end;
  poz:=poz shl 1+b[1];
  a[poz]:=i;
 end;

procedure caut;
 var poz,i:longint;
 begin
  poz:=1;
  for i:=b[0] downto 1 do begin
   if a[(poz shl 1)+(b[i] xor 1)]<>0 then begin
    y:=y shl 1+b[i] xor 1;
    poz:=(poz shl 1)+(b[i] xor 1);
   end
   else begin
    y:=y shl 1+b[i];
    poz:=poz shl 1+b[i];
   end;
  end;
  z:=a[poz];
 end;

begin
 assign(f,'xormax.in'); reset(f);
 assign(g,'xormax.out'); rewrite(g);
 read(f,n);
 read(f,x);
 y:=x; b[0]:=22; i:=1;
 for j:=1 to b[0] do begin
  b[j]:=y and 1;
  y:=y shr 1;
 end;
 max:=-1;
 fill;
 for i:=2 to n do begin
  read(f,y);
  x:=x xor y;
  y:=x;
  for j:=1 to b[0] do begin
   b[j]:=y and 1;
   y:=y shr 1;
  end;
  y:=0;
  caut;
  if x xor y>max then begin
   max:=x xor y;
   st:=z;
   dr:=i;
  end;
  fill;
 end;
 writeln(g,max,' ',st+1,' ',dr);
 close(f); close(g);
end.