/* 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
	{
		int[][] a1 = new int[2][3];
		System.out.println(Arrays.deepToString(a1));
 
    	int[][] a2 = { {1,2}, {3,4}, {5,6} };
    	System.out.println(Arrays.deepToString(a2));
 
    	int[][] a3 = { {1}, {2,3}, null };
    	System.out.println(Arrays.deepToString(a3));
	}
}

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