#include<stdio.h>

#include<string.h>

int main()

{

    int n,m,a[][];

    while(scanf("%d%d",&n,&m)!=EOF)

    {

        int t,i,j;

        t=a[i=][j=]=;

        while(t<n*m)

        {

            while(j+<m)

              a[i][++j]=++t;

              a[++i][j]=++t;

            while(j->=)

              a[i][--j]=++t;

              a[++i][j]=++t;

        }

        for(int i=;i<n;i++)

        {

            for(int j=;j<m-;j++)

            {

                printf("%2d ",a[i][j]);

            }

            printf("%2d\n",a[i][m-]);

        }

    }

    return ;

}