D231123313223313132313233313131323223313232113313231311221123232231   >>    D23112331322331313231323331313132322331323211331323131122112323223   <<    D231123313223313132313233313131323223313232113313231311221123232233   >>      D231123313223313132313233313131323223313232113313231311221123232232   >>