B3311331313231311331322331333132313331322331323133313231323331312311321   >>    B331133131323131133132233133313231333132233132313331323132333131231132   <<    B3311331313231311331322331333132313331322331323133313231323331312311323   >>      B3311331313231311331322331333132313331322331323133313231323331312311322   >>