B3311331313231311331322331333132313231323331333131133132322331312111133232321   >>    B331133131323131133132233133313231323132333133313113313232233131211113323232   <<    B3311331313231311331322331333132313231323331333131133132322331312111133232323   >>      B3311331313231311331322331333132313231323331333131133132322331312111133232322   >>