import java.util.*;

class Solution {
    public int[] solution(String my_string) {
        List<Integer> numbers = new ArrayList<>();
        for (char c : my_string.toCharArray()) {
            if (Character.isDigit(c)) {
                numbers.add(Character.getNumericValue(c));
            }
        }
        Collections.sort(numbers);
        return numbers.stream().mapToInt(Integer::intValue).toArray();
    }
}