import java.util.Arrays;

import math.Matrix;

class Program {
    public static void main(String[] args) {
        int[][] a = {{1,2},{3,4}};  //  same as int[][] a = new int[][] {{1,2},{3,4}};
        int[][] b = {{4,2},{6,8}};
        int[][] c = Matrix.add(a,b); // don't need Matrix m = new Matrix(); m.add(a,b);

        int numRows = c.length;
        for (int row = 0; row < numRows; row++) {
            System.out.println(Arrays.toString(c[row]));
        }
    }
}