{"head":"edfc4cf6ddd22abc97d6fc832d7c8e7b6d686dcd","size":1,"push_id":45781848,"shas":[["edfc4cf6ddd22abc97d6fc832d7c8e7b6d686dcd","2edadd4f4cb3b4cde87fdc14f79282a78a1ce82f@gmail.com","adding ExerciceIV to git repo","Boris Borisov"]],"ref":"refs/heads/master"}