/*
Your runtime beats 94.08 % of java submissions.
Your memory usage beats 67.73 % of java submissions.
*/
class Solution {
    public boolean test(int n){
        if(n==0){
            return true;
        }
        return false==test(n/10);
    }
    public int findNumbers(int[] nums) {
        int sum = 0;
        for(int i = 0 ; i < nums.length ; i++){
            if(test(nums[i])){
                sum++;
            }
        }
        return sum;
    }
}