import java.util.*;

class Ideone {
	public static void main (String[] args) {
		System.out.println(findSum(9));
        System.out.println(findSum(29));
        System.out.println(findSum(239));
	}
    public static int findSum(int k) {
        int sum = 0;
        boolean foundNonZero = false;
        for (; k != 0; k /= 10) {
            if (foundNonZero) {
                sum += (k % 10)*(k % 10);
            } else {
                foundNonZero = k % 10 != 0;
            }
        }
        return sum;
    }
}