B3311331313231311331322331333132333132332113313331333133313222323323221   >>    B331133131323131133132233133313233313233211331333133313331322232332322   <<    B3311331313231311331322331333132333132332113313331333133313222323323223   >>      B3311331313231311331322331333132333132332113313331333133313222323323222   >>