B33113313132313113313223313331323133313223313231333131232322121   >>    B3311331313231311331322331333132313331322331323133313123232212   <<    B33113313132313113313223313331323133313223313231333131232322123   >>      B33113313132313113313223313331323133313223313231333131232322122   >>