#include<bits/stdc++.h>
//#define int long long
using namespace std;
//const int mod = 998244353;
	map<int,int>p[1000005];
signed main() {
	int n,m;
	cin>>n>>m;
	int ans=0;
	if(n==1&&m==2) {
		cout<<"2\n1 2";
		return 0;
	}
	if(m==1&&n==2) {
		cout<<"2\n2 1";
		return 0;
	}
	for(int i=1;i<=n;++i) {
		for(int j=1;j<=m;++j) {
			if(i==1&&j==1){p[i][j]=1;++ans;}
			if(i==2&&j==2){p[i][j]=1;++ans;}
			if(i==1&&j%2==0&&j>2){p[i][j]=1;++ans;}
			if(j==1&&i%2==0&&i>2){p[i][j]=1;++ans;}
			if(i==1&&j==m&&j>2){p[i][j]=1;++ans;}
			if(i==n&&j==1&&i>2){p[i][j]=1;++ans;}
		}
	}
	cout<<ans<<"\n";
	for(int i=1;i<=n;++i) {
		for(int j=1;j<=m;++j) {
            if(p[i][j])
			cout<<p[i][j]<<" ";
            else cout<<"0 ";
		}
		cout<<"\n";
	}
}