#include<fstream>
using namespace std;
ifstream fin("piese.in");
ofstream fout("piese.out");
int a[105][105],i,j,k,ok,minim,maxim,o,p,x,y,z,n,m,l,c,sol,ii,jj;
int main(){
    fin>>n>>m;
    for(i=1;i<=n;i++){
        for(j=1;j<=m;j++){
            if(a[i][j]==0){
                l=1;
                while(i+l-1<=n&&j+l-1<=m)
                    l*=2;
                l/=2;
                sol++;
                for(ii=i;ii<=i+l-1;ii++){
                    for(jj=j;jj<=l+j-1;jj++)
                        a[ii][jj]=sol;
                }
            }
        }
    }
    fout<<sol<<"\n";
    for(i=1;i<=n;i++){
        for(j=1;j<=m;j++){
            fout<<a[i][j]<<" ";
        }
        fout<<"\n";
    }
    return 0;
}