Подскажите как решить 3 и 4 пункты. Статическая переменная автоматом решает какая строка больше и что вывести

if (list.get(b).length() == shortestString || list.get(b).length() == largestString)
System.out.print(list.get(b));

if a<b
sout(a)
else
sout(b)

ArrayList<String> list = new ArrayList<String>();
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        for (int i = 0; i < 10; i++) {
            list.add(reader.readLine());
        }

        int shortestString = list.get(0).length();
        for (int a = 0; a < 10; a++){
            if (list.get(a).length() < shortestString)
                shortestString = list.get(a).length();{
                index = a;}
        }
        int largestString = list.get(0).length();
        for (int b = 0; b < 10; b++) {
            if (list.get(b).length() > largestString) {
                largestString = list.get(b).length();
                index = b;}

        if (list.get(b).length() == shortestString || list.get(b).length() == largestString)
        System.out.print(list.get(b));
        break;
          }

public class Solution {
    static int indexShort = 0;
    static int indexLong = 0;
    public static void main(String[] args) throws Exception {

        //напишите тут ваш код
        ArrayList<String> list = new ArrayList<String>();
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        for (int i = 0; i < 10; i++) {
            list.add(reader.readLine());
        }

        int shortestString = list.get(0).length();
        for (int a = 0; a < 10; a++){
            if (list.get(a).length() < shortestString)
                shortestString = list.get(a).length();{
                    indexShort = a;}
        }
        int largestString = list.get(0).length();
        for (int b = 0; b < 10; b++) {
            if (list.get(b).length() > largestString) {
                largestString = list.get(b).length();
                indexLong = b;}
        }
        if (indexShort < indexLong)
        System.out.println(list.get(indexShort));
        else System.out.println(list.get(indexLong));

        }
    }