#include <bits/stdc++.h>
#include <atcoder/modint>
using namespace std;
using namespace atcoder;
using ll = long long;
using mint = modint1000000007;
#define rep(i,n) for (int i = 0; i < n; i++)
#define rrep(i,n) for (int i = n-1; i >= 0; i--)
#define rep2(i,a,b) for (int i = a; i < b; i++)
#define rrep2(i,a,b) for (int i = a-1; i >= b; i--)
#define rep3(i,a,b,c) for (int i = a; i < b; i+=c)
#define rrep3(i,a,b,c) for (int i = a-1; i >= b; i-=c)
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
template<class T> bool chmax(T &a, T b){if (a < b){a = b;return true;} else return false;}
template<class T> bool chmin(T &a, T b){if (a > b){a = b;return true;} else return false;}

int h,w;
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cin>>h>>w;
    if(h==1||w==1){
        cout<<0<<"\n";
        rep(i,h){
            rep(j,w)cout<<0<<" ";
            cout<<"\n";
        }
    }else if((h==2&&w%2==1)||(w==2&&h%2==1)){
        cout<<h*w-2<<"\n";
        if(h==2){
            rep(i,h){
                rep(j,w)cout<<(j<w-1?1:0)<<" ";
                cout<<"\n";
            }
        }else{
            rep(i,h){
                rep(j,w)cout<<(i<h-1?1:0)<<" ";
                cout<<"\n";
            }
        }
    }else if(h==3||w==3){
        if(h==3){
            if(w%2==1){
                cout<<(h-1)*(w-1)+2<<"\n";
                rep(i,h){
                    rep(j,w)cout<<((i==h-1&&j<w-2)||(i==h-2&&j==w-2)||(j==w-1&&i<h-2)?0:1)<<" ";
                    cout<<"\n";
                }
            }else{
                cout<<w*(h-1)<<"\n";
                rep(i,h){
                    rep(j,w)cout<<(i<h-1?1:0)<<" ";
                    cout<<"\n";
                }
            }
        }else{
            if(h%2==1){
                cout<<(h-1)*(w-1)+2<<"\n";
                rep(i,h){
                    rep(j,w)cout<<((i==h-1&&j<w-2)||(i==h-2&&j==w-2)||(j==w-1&&i<h-2)?0:1)<<" ";
                    cout<<"\n";
                }
            }else{
                cout<<h*(w-1)<<"\n";
                rep(i,h){
                    rep(j,w)cout<<(j<w-1?1:0)<<" ";
                    cout<<"\n";
                }
            }
        }
    }else{
        cout<<h*w<<"\n";
        rep(i,h){
            rep(j,w)cout<<1<<" ";
            cout<<"\n";
        }
    }
}