B33113313132313113313223313331323133313132212111133112331322121   >>    B3311331313231311331322331333132313331313221211113311233132212   <<    B33113313132313113313223313331323133313132212111133112331322123   >>      B33113313132313113313223313331323133313132212111133112331322122   >>