D231123132333132233131323223313233313231211113313231313231111231   >>    D23112313233313223313132322331323331323121111331323131323111123   <<    D231123132333132233131323223313233313231211113313231313231111233   >>      D231123132333132233131323223313233313231211113313231313231111232   >>