Even

Given an array of integers, return how many of them contain an even number of digits.

Example 1:

Input = [12,345,2,6,7896]
Output: 2
Explanation: 
12 contains 2 digits (even number of digits). 
345 contains 3 digits (odd number of digits). 
2 contains 1 digit (odd number of digits). 
6 contains 1 digit (odd number of digits). 
7896 contains 4 digits (even number of digits). 
Therefore only 12 and 7896 contain an even number of digits.

Input = [555,901,482,1771]
Output: 1 
Explanation: 
Only 1771 contains an even number of digits.]

func findEvenNumbers(_ nums: [Int]) -> Int {
        
}