please help i rate fast!

Aming company plans to mine a beach for tutile To do so will cost $12 million up front and then produce cash flows of 55 milion per year for five years. At the end of the sich you the company will incur shut down and clean-up costs of a million if the cost of capitalis 14% then what is the MIRR for this project? A 16.15 OB 20.01% OC 12.73% OD 1637%