#include<iostream> 
#include<iomanip> 
#include<cmath> 
#include<cstring> 
#include<cstdio> 
#include<algorithm> 
using namespace std;
const int N=1e2+8;
const int INF=0x3f3f3f3f;
int a[N][N],b[N][N],m,n;
int main()
{
	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];
			cout<<a[i][j]+b[i][j]<<" ";
		}
		cout<<endl;
	}
	return 0;
}