B33113313132313113313223313331323331333112113313331323133313223123121   >>    B3311331313231311331322331333132333133311211331333132313331322312312   <<    B33113313132313113313223313331323331333112113313331323133313223123123   >>      B33113313132313113313223313331323331333112113313331323133313223123122   >>