Write a method that takes an ArrayList<Integer> and an int value and returns the first index at which value appears in the ArrayList.

If the value does not exist in the ArrayList, return -1

For example, if we had an ArrayList<Integer> list with the values [10, 20, 30, 20]:

search(list, 20)

Should return

1

Because 20 first appears at index 1 in the ArrayList.

If we had an ArrayList<Integer> list with the values [10, 20, 30, 20]:

search(list, 40)

Should return

-1

Because 40 does not appear in the ArrayList.