B3311331313231311331322331333132313331323223312113313331333112312321   >>    B331133131323131133132233133313231333132322331211331333133311231232   <<    B3311331313231311331322331333132313331323223312113313331333112312323   >>      B3311331313231311331322331333132313331323223312113313331333112312322   >>