B3311331313231311331322331333132313331322331323133313331331123121211111311321   >>    B331133131323131133132233133313231333132233132313331333133112312121111131132   <<    B3311331313231311331322331333132313331322331323133313331331123121211111311323   >>      B3311331313231311331322331333132313331322331323133313331331123121211111311322   >>