/* package whatever; // 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 Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Random rand = new Random();
		int time = rand.nextInt(24);
		System.out.println(time);
		if (time > 20 && time < 24)
		System.out.println(time +"pm" + "lights on");
		else if (time > 1 && time <11)
		System.out.println(time + "am" + "lights off" );
	}
}

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