Help me in solving TIMELY problem

My issue

My code

/* package codechef; // don't place package name! */

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

/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc=new
		Scanner(System.in);
		int t=sc.nextInt();
		while(t-->0)
		{
		    int x=sc.nextInt();
		    if(x>=30)
		    {
		        System.out.println("YES");
		    }
		    else{
		        System.out.println("N0");
		    }
		}
	}
}

Problem Link: TIMELY Problem - CodeChef

@saiteja28
in while condition it should be t-- only