B33113313132313113313223313331323133313223313231333133313112121111331311223121   >>    B3311331313231311331322331333132313331322331323133313331311212111133131122312   <<    B33113313132313113313223313331323133313223313231333133313112121111331311223123   >>      B33113313132313113313223313331323133313223313231333133313112121111331311223122   >>