#include<stdio.h>
#include<stdlib.h>
void main(int num, char* args[])
{
int x, y;
scanf("%d%d", &x, &y);
int **pp = (int **) malloc(sizeof(int *)*x);
for(int i = 0; i < x; i++)
{
pp[i] = malloc(sizeof(int)*y);
}
int n = 0;
for(int i=0; i < x; i++)
{
for(int j = 0; j < y; j++)
{
pp[i][j] = n++;
printf("%d ",pp[i][j]);
}
printf("\n");
}
}