#include<bits/stdc++.h> using namespace std; int a[105][105],b[105][105],c[105][105]; int main(){ int n,m; cin>>n>>m; for(int i = 1;i<=n;i++){ for(int j = 1;j<=m;j++){ cin>>a[i][j]; }

}
for(int i = 1;i<=n;i++){
	for(int j = 1;j<=m;j++){
		cin>>b[i][j];
	}
}
for(int i = 1;i<=n;i++){
	for(int j = 1;j<=m;j++){
		c[i][j] = a[i][j]+b[i][j];
		cout<<c[i][j]<<" ";
	}
	cout<<endl;
}

return 0;

}