B3311331313231311331322331333132313331323133313233313331333133322111   >>    B331133131323131133132233133313231333132313331323331333133313332211   <<    B3311331313231311331322331333132313331323133313233313331333133322113   >>      B3311331313231311331322331333132313331323133313233313331333133322112   >>