#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#define _GLIBCXX_DEBUG
using namespace std;
using std::cout;
using std::cin;
using std::endl;
using ll=long long;
using ld=long double;
ll ILL=2167167167167167167;
const int INF=2100000000;
const ll mod=1e9+7;
#define rep(i,a) for (ll i=0;i<a;i++)
#define all(p) p.begin(),p.end()
template<class T> using _pq = priority_queue<T, vector<T>, greater<T>>;
template<class T> ll LB(vector<T> &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();}
template<class T> ll UB(vector<T> &v,T a){return upper_bound(v.begin(),v.end(),a)-v.begin();}
template<class T> bool chmin(T &a,const T &b){if(a>b){a=b;return 1;}else return 0;}
template<class T> bool chmax(T &a,const T &b){if(a<b){a=b;return 1;}else return 0;}
template<class T> void So(vector<T> &v) {sort(v.begin(),v.end());}
template<class T> void Sore(vector<T> &v) {sort(v.begin(),v.end(),[](T x,T y){return x>y;});}
void yneos(bool a){if(a) cout<<"Yes\n"; else cout<<"No\n";}
template<class T> void vec_out(vector<T> &p){for(int i=0;i<(int)(p.size());i++){if(i) cout<<" ";cout<<p[i];}cout<<"\n";}


 
void solve();
// oddloop
int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	
	int t=1;
	//cin>>t;
	rep(i,t) solve();
}

void solve(){
	int N,M;
	cin>>N>>M;
	if(N%2==0){
		if(M%2==0){
			cout<<N*M<<"\n";
			rep(i,N){
				rep(j,M){
					if(j) cout<<" ";
					cout<<1;
				}
				cout<<"\n";
			}
		}else{
			cout<<N*(M-1)<<"\n";
			rep(i,N){
				rep(j,M){
					if(j) cout<<" 1";
					else cout<<0;
				}
				cout<<"\n";
			}
		}
	}else{
		if(M%2==0){
			cout<<(N-1)*M<<"\n";
			rep(i,N){
				rep(j,M){
					if(j) cout<<" ";
					if(i) cout<<1;
					else cout<<0;
				}
				cout<<"\n";
			}
		}else{
			cout<<M*N-max(M,N)<<"\n";
			rep(i,N){
				rep(j,M){
					if(j) cout<<" ";
					if(i==j) cout<<0;
					else if(min(i,j)==min(N,M)-1) cout<<0;
					else cout<<1;
				}
				cout<<"\n";
			}
		}
	}
}