B33113313132313113313223313331323132313233313331313231333132333132212131   >>    B3311331313231311331322331333132313231323331333131323133313233313221213   <<    B33113313132313113313223313331323132313233313331313231333132333132212133   >>      B33113313132313113313223313331323132313233313331313231333132333132212132   >>