program cilindr;

{$APPTYPE CONSOLE}

uses
  SysUtils;

var v,a,b,h,d:real;
begin
a:=1;b:=1;
while (a<>0)and(b<>0) do begin
readln(a,b);
if (a<>0)and(b<>0) then begin
 {  if pi*a<=b-a then d:=a
   else }
   d:=a/pi;
   h:=b-d;
   writeln(h:2:2,' ',d:2:2);
   v:=h*pi*sqr(d/2);
   writeln(v:3:3);

end;
end;
readln;
 { TODO -oUser -cConsole Main : Insert code here }
end.