begin
  switch toplevel(0:1)
  toplevel(0):
  begin
  
    routine another
      switch in a routine(-3:7)
      
      ->in a routine (-1)
      
      in a routine(5):
    end
    
    switch sw(0:9)

    ->sw(34)

  sw(4):
    stop
  end
  
endofprogram