import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int size1 = in.nextInt();
int size2 = in.nextInt();
int size3 = in.nextInt();
int size4 = in.nextInt();
int[][] arr1 = new int[size1][size2];
int[][] arr2 = new int[size3][size4];
for (int i = 0; i < arr1.length; i++){
for (int j = 0; j < arr1[i].length; j++){
arr1[i][j] = (int) (Math.random()*10);
}
}
for (int i = 0; i < arr2.length; i++){
for (int j = 0; j < arr2[i].length; j++){
arr2[i][j] = (int) (Math.random()*10);
}
}
int h = longer(size2, size4);
int p = longer(size1, size3);
int[][] suma = new int[p][h];
for (int i = 0; i < p; i++){
for (int j = 0; j < h; j++){
int num1 = 0;
int num2 = 0;
if((i >= arr1.length && arr1.length < p) || (arr1[i].length < h && j >= arr1[i].length)){
num1 = 0;
} else {
num1 = arr1[i][j];
}
if((i >= arr2.length && arr2.length < p) || (arr2[i].length < h && j >= arr2[i].length)){
num2 = 0;
} else {
num2 = arr2[i][j];
}
suma[i][j] = num1 + num2;
System.out.print(" [" + i + "] " + " " + " [" + j + "] " + " = " + suma[i][j] + " ");
}
System.out.println();
}
}
public static int longer (int a, int b){
if(a > b){
return a;
} else {
return b;
}
}
}
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