#include<fstream>
using namespace std;
ifstream f("piese.in");
ofstream g("piese.out");
int v[510][510],n,m,k,t,i,j,nr;
void put();
void fill(int xi,int yi,int xf,int yf);
int main()
{
	f>>n>>m;
	t=1;
	k=min(n,m);
	while(t*2<=k)
		t*=2;
	for(;t>=1;t>>=1)
	{
		put();
	}
	g<<nr<<"\n";
	for(i=1;i<=n;++i)
	{
		for(j=1;j<=m;++j)
			g<<v[i][j]<<" ";
		g<<"\n";
	}
	return 0;
}
void put()
{
	for(i=1;i<=n;++i)
		for(j=1;j<=m;++j)
		{
			if(i+t-1>n||j+t-1>m)
				break;
			if(v[i][j]==0&&v[i+t-1][j+t-1]==0)
			{
				nr++;
				fill(i,j,i+t-1,j+t-1);
			}
		}
}
void fill(int xi,int yi,int xf,int yf)
{
	for(int i=xi;i<=xf;++i)
		for(int j=yi;j<=yf;++j)
			v[i][j]=nr;
}