B33113313132313113313223313331323133313223313231333133313231121211111331123121   >>    B3311331313231311331322331333132313331322331323133313331323112121111133112312   <<    B33113313132313113313223313331323133313223313231333133313231121211111331123123   >>      B33113313132313113313223313331323133313223313231333133313231121211111331123122   >>