[0] JAVA 테스트 케이스 입력

import java.util.*;

import java.io.*;
import java.util.*;
class Main {
	public static void main(String[] args) throws Exception {
	
		Scanner in = new Scanner(System.in); 
		int n = in.nextInt();
		int m = in.nextInt();
		int[][] cards = new int[n][m];
		for (int i = 0; i < n; i++) {
			for (int j = 0; j < m; j++) {
				cards[i][j] = in.nextInt();
			}
		}
	}
}