B33113313132313113313223313331323132313331313232233132333132313232211321   >>    B3311331313231311331322331333132313231333131323223313233313231323221132   <<    B33113313132313113313223313331323132313331313232233132333132313232211323   >>      B33113313132313113313223313331323132313331313232233132333132313232211322   >>