B3311331313231311331322331333132333132332113313331333132313221121131   >>    B331133131323131133132233133313233313233211331333133313231322112113   <<    B3311331313231311331322331333132333132332113313331333132313221121133   >>      B3311331313231311331322331333132333132332113313331333132313221121132   >>