B3311331313231311331322331333132313331322331323133313331313113313132233311   >>    B331133131323131133132233133313231333132233132313331333131311331313223331   <<    B3311331313231311331322331333132313331322331323133313331313113313132233313   >>      B3311331313231311331322331333132313331322331323133313331313113313132233312   >>