#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main() {
    int n,m;
    
    scanf("%d %d", &n, &m);

    int **arr = (int**)malloc(n * sizeof(int*));
    for(int i=0; i<n; i++){
        arr[i] = (int*)malloc(m * sizeof(int));
    }

    int a = 1;

    //6 9 11 12
    //3 5  8 10
    //1 2  4  7

    //(0,0)(0,1)(0,2)(0,3)
    //(1,0)(1,1)(1,2)(1,3)
    //(2,0)(2,1)(2,2)(2,3)

    //0 1 2 3
    //1 2 3 4
    //2 3 4 5

    for(int k=0; k<n + m -1; k++){
        for(int i=n-1; i>=0; i--){
            int j = k-(n-1-i);

            if(j>=0 && j<m){
                arr[i][j] = a;
                a++;
            }
        }
    }

    for(int i=0; i<n; i++){
        for(int j=0; j<m; j++){
            printf("%d ", arr[i][j]);
        }
        printf("\n");
    }
    
    return 0;
}