B3311331313231311331322331333132333133313231332113313331333133323323132322111   >>    B331133131323131133132233133313233313331323133211331333133313332332313232211   <<    B3311331313231311331322331333132333133313231332113313331333133323323132322113   >>      B3311331313231311331322331333132333133313231332113313331333133323323132322112   >>