B33113313132313113313223313331323133313223313231333133313221321123123121   >>    B3311331313231311331322331333132313331322331323133313331322132112312312   <<    B33113313132313113313223313331323133313223313231333133313221321123123123   >>      B33113313132313113313223313331323133313223313231333133313221321123123122   >>