B3311331313231311331322331333132233131133132233133313231333132333132312323331   >>    B331133131323131133132233133313223313113313223313331323133313233313231232333   <<    B3311331313231311331322331333132233131133132233133313231333132333132312323333   >>      B3311331313231311331322331333132233131133132233133313231333132333132312323332   >>