While lifting a heavy load a 39-year-old patient suddenly felt a severe headache, pain in the interscapular regi-on,and started vomiting. Objectively: the pulse is rhythmic, 60/min., Ap 180/100 mm Hg. The patient is agitated. He presents with photophobia, hyperacusis. There are positive Kernig’s and Brudzi-nski’s signs on both sides. In blood: WBCs - 10 • 109/l. CSF is bloody, cytosis is 240/3. What is the most likely diagnosis?