B3311331313231311331322331333132313331322331323133313231323131333131232211   >>    B331133131323131133132233133313231333132233132313331323132313133313123221   <<    B3311331313231311331322331333132313331322331323133313231323131333131232213   >>      B3311331313231311331322331333132313331322331323133313231323131333131232212   >>