old/PAS/OLD/HW22.PAS

var
  test, num : boolean;
  a, b : shortint;


Begin
  test := true;
  num := false;
        Write ('‚¢®¤¨â¥ ­ âãà «ì­ë¥ ç¨á« , § ª®­ç¨â¥ ­ã«¥¬ ');
          Readln(a);
          b := a;
          if a <> 0 then
          begin
            Repeat
              Read (a);
              if a <> 0 then
              begin
                if not ((a > 0) and (b < 0) or (A < 0) and (b > 0)) then
                  Begin
                    test := false;
                    num := true;
                    b := a;
                  end
                else
                 begin
                   b := a;
                   num := true;
                 end;
              end;
            Until a = 0;
          end;
  if num = false then Write('�ë«® ¢¢¥¤¥­® ­¥¤®áâ â®ç­® ç¨á¥«')
   else
   begin
    if test = true then
      Writeln ('�®á«¥¤®¢ â¥«ì­®áâì ¢¥à­  ')
    else
      Writeln ('�®á«¥¤®¢ â¥«ì­®áâì ­¥ ¢¥à­  ');
   end;
  readln;
  Readln;
End.