Create a function that takes the number of activeCases, daily average recovered cases and daily average newCases and calculates the number of days it will take to reach zero cases.
endCorona(4000, 2000, 77000) ➞ 39
endCorona(3000, 2000, 50699) ➞ 51
endCorona(30000, 25000, 390205) ➞ 79recovers will always be greater than daily newCases.