B3311331313231311331322331333132333133313231332113313331333132332323221   >>    B331133131323131133132233133313233313331323133211331333133313233232322   <<    B3311331313231311331322331333132333133313231332113313331333132332323223   >>      B3311331313231311331322331333132333133313231332113313331333132332323222   >>