B3311331313231311331322331333132313231323331333131133131133131323223313222211   >>    B331133131323131133132233133313231323132333133313113313113313132322331322221   <<    B3311331313231311331322331333132313231323331333131133131133131323223313222213   >>      B3311331313231311331322331333132313231323331333131133131133131323223313222212   >>