Why CodeChef compiler is full of errors!

general
, , ,
1

this question is from the ongoing contest that’s why I hide the code.

import java.util.*;
import java. lang.*;
import java.io.*;

class Codechef
{
	public static void main (String[] args) throws java. lang.Exception
	{
	    
  
	       BufferedReader reader =new BufferedReader(new InputStreamReader(System.in));
	       String t = reader.readLine();
	     
	       while(t-->0)
	       {
	          / something.....................
.....................................................
	           System.out.println("1");
	           else
	            System.out.println("2");
	       }
	}

why I am getting this error

java.lang.NumberFormatException: For input string: “10 20 30 0 29 30”