Plz if u can ASAP

For assignments 2 and 3, you wrote a function next (n) that re- turns the value that follows n in a hailstone sequence. The value of next(n) is only defined for n > 1. 8. Write a definition of function hailSum(n), which returns the sum of all of the values in the hailstone sequence starting at n. For example, the hailstone Sum(4) should return 4 +2+1-7. For this problem, use recursion. Do not use any kind of loop. You are required to use next(n) to find the value that comes after n. Assume that n 21. A heading is given. sequence starting at 4 is (4, 2, 1), so hail- int hailSum(int n)