a

import java.util.Arrays;
import java.util.Scanner;
public class Tang8 {

	public static void main(String[] args) {
		//This program prompt user to enter 3x3 matrix
		//and sort the number by row
		Scanner in = new Scanner(System.in);
		System.out.print("Enter a 3-by-3 matrix row by row: ");
		//a for row, b for column
		int x;
		int y;
		//A 3 by 3 matrix
		double[][] m = new double[3][3];
		//for a and b less than matrix's length
		//a and b increment
		for (x = 0; x < m.length; x++) {
			for (y = 0; y < m.length; y++)
				m[x][y] = in.nextInt();
		}
		System.out.println(sortRows(m));

	}

	private static char[] sortRows(double[][] m) {
		for (int i = 0; i < m.length; i++){

		}
		return null;
	}

}