import java.util.Scanner;

public class Matrices {

   public static void main(String[] args) {
       Scanner scanner = new Scanner(System.in);
       System.out.print("Enter number of rows: ");
       int rows = scanner.nextInt();
       System.out.print("Enter number of columns: ");
       int columns = scanner.nextInt();
       System.out.println();
       System.out.println("Enter first matrix");
       int[][] a = readMatrix(rows, columns);
       System.out.println();
       System.out.println("Enter second matrix");
       int[][] b = readMatrix(rows, columns);
       int[][] sum = add(a, b);
       int[][] difference1 = subtract(a, b);
       int[][] difference2 = subtract(b, a);
       System.out.println();
       System.out.println("A + B =");
       printMatrix(sum);
       System.out.println();
       System.out.println("A - B =");
       printMatrix(difference1);
       System.out.println();
       System.out.println("B - A =");
       printMatrix(difference2);
   }

   public static int[][] readMatrix(int rows, int columns) {
       int[][] result = new int[rows][columns];
       Scanner s = new Scanner(System.in);
       for (int i = 0; i < rows; i++) {
           for (int j = 0; j < columns; j++) {
               result[i][j] = s.nextInt();
           }
       }
       return result;
   }

   public static int[][] add(int[][] a, int[][] b) {
       int rows = a.length;
       int columns = a[0].length;
       int[][] result = new int[rows][columns];
       for (int i = 0; i < rows; i++) {
           for (int j = 0; j < columns; j++) {
               result[i][j] = a[i][j] + b[i][j];
           }
       }
       return result;
   }

   public static int[][] subtract(int[][] a, int[][] b) {
       int rows = a.length;
       int columns = a[0].length;
       int[][] result = new int[rows][columns];
       for (int i = 0; i < rows; i++) {
           for (int j = 0; j < columns; j++) {
               result[i][j] = a[i][j] - b[i][j];
           }
       }
       return result;
   }

   public static void printMatrix(int[][] matrix) {
       int rows = matrix.length;
       int columns = matrix[0].length;
       for (int i = 0; i < rows; i++) {
           for (int j = 0; j < columns; j++) {
               System.out.print(matrix[i][j] + " ");
           }
           System.out.println();
       }
   }
}