B3311331313231311331322331333132313233313233231333133313331323222332323321   >>    B331133131323131133132233133313231323331323323133313331333132322233232332   <<    B3311331313231311331322331333132313233313233231333133313331323222332323323   >>      B3311331313231311331322331333132313233313233231333133313331323222332323322   >>