B3311331313231311331322331333132333131333131333133313231323233221   >>    B331133131323131133132233133313233313133313133313331323132323322   <<    B3311331313231311331322331333132333131333131333133313231323233223   >>      B3311331313231311331322331333132333131333131333133313231323233222   >>