type Cl = class
  a:integer;
  constructor Create(b:integer);
  procedure P;
end;

constructor Cl.Create(b:integer);
begin
  a := b;
end;

procedure Cl.P;
begin
  if (a div 100 > 0) and (a > 0) then
  begin
    a := a - 1;
    writeln('new a  = ', a);
  end;
end;

var
  Obj:Cl;
  a :integer;
begin
  write('a = ');
  readln(a);
  Obj := Cl.Create(a);
  Obj.P;
  Readln;
  Obj.Destroy;
end.