#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <map>
#include <atcoder/modint>
using namespace std;
using i32 = int32_t;
using u32 = uint32_t;
using i64 = int64_t;
using u64 = uint64_t;
#define rep(i,n) for(int i=0; i<(int)(n); i++)


const i64 INF = 1001001001001001001;
using modint = atcoder::static_modint<1000000007>;


int main(){
    int H, W; cin >> H >> W;
    if(H % 2 == 0 && W % 2 == 0){
        cout << (H*W) << '\n';
        rep(y,H){
            rep(x,W-1) cout << "1 ";
            cout << "1";
            cout << '\n';
        }
    }
    else if(H % 2 == 0){
        cout << (H*(W-1)) << '\n';
        rep(y,H){
            rep(x,W-1) cout << "1 ";
            cout << "0";
            cout << '\n';
        }
    }
    else if(W % 2 == 0){
        cout << ((H-1)*W) << '\n';
        rep(y,H-1){
            rep(x,W-1) cout << "1 ";
            cout << "1";
            cout << '\n';
        }
        rep(x,W-1) cout << "0 ";
        cout << "0";
        cout << '\n';
    }
    else{
        cout << ((H*W)-max(H,W)) << '\n';
        rep(y,H){
            rep(x,W){
                if(x) cout << " ";
                if(x == y) cout << "0";
                else if(x == W-1 && y >= W) cout << "0";
                else if(y == H-1 && x >= H) cout << "0";
                else cout << "1";
            }
            cout << '\n';
        }
    }
    return 0;
}


struct ios_do_not_sync{
    ios_do_not_sync(){
        std::ios::sync_with_stdio(false);
        std::cin.tie(nullptr);
    }
} ios_do_not_sync_instance;