Hello, here is listing. Locally it works and prints the result.
Don't understand why it causes the Runtime Error.
Thanks.


import java.io.IOException;
import java.io.*;
import java.util.*;

public class Solution {

  public static void main(String[] args) throws IOException
  {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

int a = Integer.parseInt(reader.readLine());
int b = Integer.parseInt(reader.readLine());
System.out.println(a + b);
  }
}