/* 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 m[][] = new int[30][2]; 
        for(int i = 0; i < m.length; i++) { 
			m[i][0] = rand.nextInt(2400);
			m[i][1] = rand.nextInt(400);
 		}
 
		// Exibindo o que foi criado
		for(int i = 0; i < m.length; i++) { 
			System.out.printf(" {%d, %d} ", m[i][0], m[i][1]);	
		}
 
 
	}
}

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