import java.util.*;
import java.io.*;
 
class Main {
    public static void main(String[] args) {
        Scanner sc =  new Scanner(System.in);
        int r = sc.nextInt();
        int c = sc.nextInt();
        int mat[][] = new int[r][c];
        for(int i=0;i<r;i++)
        {
            for(int j=0;j<c;j++)
            {
            	System.out.print(mat[i][j]+" ");
            }
            System.out.println();
        }
        System.out.println();
    }
}

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