B33113313132313113313223313331311331333132311331333133313221323121   >>    B3311331313231311331322331333131133133313231133133313331322132312   <<    B33113313132313113313223313331311331333132311331333133313221323123   >>      B33113313132313113313223313331311331333132311331333133313221323122   >>