#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vii;
typedef pair<ll,ll> pii;
#define F first
#define S second
#define pb push_back
#define all(v) v.begin(),v.end()
const ll M=5e5+10;
const ll inf=2e18;
const ll mod=1e9+7;
ll pow(ll x,ll y,ll mod=mod){
    x%=mod;
    ll res=1;
    while(y>0){
        if((y&1)>0)
        res*=x,res%=mod;
        x*=x,x%=mod;
        y/=2;
    }
    return res;
}
ll n,m;
int main(){
    ios_base::sync_with_stdio(0),cin.tie(0);    
    ll TC=1;
    //cin>>TC;
    while(TC--){
        cin>>n>>m;
        for(int i=0;i<n;i++){
        for(int j=0;j<m;j++)
        cout<<0<<' ';
        cout<<'\n';
        }
    }
}