import java.util.LinkedList;
import java.util.List;

public class MaxNumber {
      

    public static long print(long numb) {

        long currentIntPart = numb;
        long currentDigit;
        List<Long> linkedList = new LinkedList<>();

        for (int i = 0; currentIntPart > 0; i++) {
            currentDigit = currentIntPart % 10;
            currentIntPart = currentIntPart / 10;

            if (linkedList.isEmpty()) {
                linkedList.add(currentDigit);
                continue;
            }

            boolean inserted = false;

            for (int j = 0; j < linkedList.size(); j++){
                if(currentDigit > linkedList.get(j)){
                    linkedList.add(j, currentDigit);
                    inserted = true;
                    break;
                }
            }

        if(!inserted) {
            linkedList.add(currentDigit);
        }

        }

        long result = 0;
        int count = 0;

        for (int i = linkedList.size() -1; i>=0; i--) {
            long digit = linkedList.get(i);
            result += digit * (long) Math.pow(10, count);
            count++;
        }
        return result;
    }

}