program ural1079;
const
  maxn=99999;
var
  a,max:array[0..maxn]of integer;
  n,i:longint;
begin
  a[0]:=0;a[1]:=1;
  max[0]:=0;max[1]:=1;
  for i:=2 to maxn do begin
    if odd(i) then
      a[i]:=a[i div 2]+a[i div 2+1]
    else
      a[i]:=a[i div 2];
    if a[i]>max[i-1] then max[i]:=a[i] else max[i]:=max[i-1];
  end;

  repeat
    readln(n);
    if n=0 then halt;
    writeln(max[n]);
  until false;
end.