Kyselyt

// @author Anssi

import java.util.Scanner;

public class KyselytTehtava {

    private static int appendable = 1;
    private static StringBuilder myString;

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        myString = new StringBuilder(Integer.toString(appendable));

        int count = input.nextInt();
        int[] queries = new int[count];

        for (int i = 0; i < count; i++) {

            queries[i] = input.nextInt();
        }

        for (int i = 0; i < count; i++) {

            System.out.println(completeQuery(queries[i]));
        }

    }

    private static char completeQuery(int index) {

        while (true) {

            if (myString.length() >= index) {

                return myString.charAt(index - 1);
            }

            appendable++;

            myString.append(appendable);

        }
    }
}

Test 1

Group: 1

Verdict: ACCEPTED

Test 2

Group: 2

Verdict: ACCEPTED

Test 3

Group: 3

Verdict: RUNTIME ERROR

Exception in thread "main" java.util.InputMismatchException: For input string: "6722748329...