B3311331313231311331322331333132313233313231333131123313331323332233221   >>    B331133131323131133132233133313231323331323133313112331333132333223322   <<    B3311331313231311331322331333132313233313231333131123313331323332233223   >>      B3311331313231311331322331333132313233313231333131123313331323332233222   >>