B33113313132313113313223313331323133313223313231333133112213331323223123121   >>    B3311331313231311331322331333132313331322331323133313311221333132322312312   <<    B33113313132313113313223313331323133313223313231333133112213331323223123123   >>      B33113313132313113313223313331323133313223313231333133112213331323223123122   >>