B3311331313231311331322331333132313331323133313233313331333133322113231   >>    B331133131323131133132233133313231333132313331323331333133313332211323   <<    B3311331313231311331322331333132313331323133313233313331333133322113233   >>      B3311331313231311331322331333132313331323133313233313331333133322113232   >>