B33113313132313113313223313331323131323133313232233132313311232322121   >>    B3311331313231311331322331333132313132313331323223313231331123232212   <<    B33113313132313113313223313331323131323133313232233132313311232322123   >>      B33113313132313113313223313331323131323133313232233132313311232322122   >>