B3311331313231311331322331333132313331323223312113313331333131131321   >>    B331133131323131133132233133313231333132322331211331333133313113132   <<    B3311331313231311331322331333132313331323223312113313331333131131323   >>      B3311331313231311331322331333132313331323223312113313331333131131322   >>