B3311331313231311331322331333132313231323331333131133132322331311332231111   >>    B331133131323131133132233133313231323132333133313113313232233131133223111   <<    B3311331313231311331322331333132313231323331333131133132322331311332231113   >>      B3311331313231311331322331333132313231323331333131133132322331311332231112   >>