B33113313132313113313223313331323131323133313232233132333132313223313232212321   >>    B3311331313231311331322331333132313132313331323223313233313231322331323221232   <<    B33113313132313113313223313331323131323133313232233132333132313223313232212323   >>      B33113313132313113313223313331323131323133313232233132333132313223313232212322   >>