B33113313132313113313223313331323132313233313331311233133313232233131131223321   >>    B3311331313231311331322331333132313231323331333131123313331323223313113122332   <<    B33113313132313113313223313331323132313233313331311233133313232233131131223323   >>      B33113313132313113313223313331323132313233313331311233133313232233131131223322   >>