#include <fstream>

using namespace std;

ifstream f("tablete.in");
ofstream g("tablete.out");

int n , m , k , mat[1005][1005] ;

int main()
{
    f >> n >> m;
    for(int i = 1 ; i <= n ; ++i){
        for(int j = 1 ; j < m ; ++j){
            if(!mat[i][j]){
                mat[i][j] = ++k;
            }
        }

        ++k;
        if(k % 2){
            mat[i][m] = k + 1;
            if(i < n){
                mat[i + 1][1] = k;
            }
            else{
                mat[1][m + 1] = k;
            }
            ++k;
        }
        else{
            mat[i][m] = k;
        }
    }

    for(int i = 1 ; i <= n ; ++i){
        for(int j = m + 1 ; j <= n ; ++j){
            if(mat[i][j] == 0)
                mat[i][j] = ++k;
        }
    }

    for(int i = 1 ; i <= n ; ++i){
        for(int j = 1 ; j <= n ; ++j){
            g << mat[i][j] << " " ;
        }
        g << '\n' ;
    }
    return 0;
}