var  a : array[1..100000] of longint;
     n, i, i2, j, n1, n2, smem, p1mem,p2mem : longint;
     t : text;



begin
  p2mem:=100;
  assign(t,'xormax.in');
  reset(t);
  Readln(t,n);

  for i:=1 to n do
  begin
  read(t,a[i]);
  end;



for i:=1 to n do
for j:=i+1 to n do
begin


n1:=a[i];
for i2:=i+1 to j  do
begin
n1:=a[i2] xor n1;
end;
if n1>=smem then
begin
smem:=n1;
if (p2mem-p1mem)>=(j-i) then
begin
p2mem:=j;
p1mem:=i;
end;
end;
end;
close(t);
assign(t,'xormax.out');
rewrite(t);

write(t,smem,' ');
write(t,p1mem,' ');
write(t,p1mem+1);

close(t);

end.