B3311331313231311331322331333132313331322331323133313331311321333132212111   >>    B331133131323131133132233133313231333132233132313331333131132133313221211   <<    B3311331313231311331322331333132313331322331323133313331311321333132212113   >>      B3311331313231311331322331333132313331322331323133313331311321333132212112   >>