B3311331313231311331322331333132313233313231333131123313331323221213231131   >>    B331133131323131133132233133313231323331323133313112331333132322121323113   <<    B3311331313231311331322331333132313233313231333131123313331323221213231133   >>      B3311331313231311331322331333132313233313231333131123313331323221213231132   >>