B3311331313231311331322331333132313331322331323133313331313113313132211321   >>    B331133131323131133132233133313231333132233132313331333131311331313221132   <<    B3311331313231311331322331333132313331322331323133313331313113313132211323   >>      B3311331313231311331322331333132313331322331323133313331313113313132211322   >>