//2d arrays
import java.util.Scanner;
class Array2d{
public static void main(String args[]){
 int[][] arr = new int[2][2];
 //int[][] arr = {{1,2,3,4},{2,3,4,5},{3,4,5,6}};
 int row,col;
 
 Scanner sc = new Scanner(System.in);
 for(row=0;row<arr.length;row++){
	 for(col=0;col<arr[row].length;col++){
		 arr[row][col] = sc.nextInt();
	 }
}
/*
 for(row=0;row<3;row++){
	 for(col=0;col<4;col++){
		 System.out.print(arr[row][col] + " ");
	 }
	 System.out.println();
}
*/
for(int[] i: arr){
	for(int ele:i){
		System.out.print(ele + " ");
	 }
	 System.out.println();
}


}
}