Ex2

https://drive.google.com/file/d/1pvO81SswCjD4qU7GJ0c1V6mBew5W5AUm/view?usp=sharing
http://www.efos.unios.hr/poslovne-simulacije/wp-content/uploads/sites/180/2013/09/Arena_Basic_Edition_User_s_Guide11.pdf