#include<bits/stdc++.h>
using namespace std;
const int N=110;
int a[N][N],b[N][N],c[N][N];
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];
		}
	}
	for (int i=1;i<=n;i++)
	{
		for (int j=1;j<=m;j++)
		{
			cout<<c[i][j]<<" ";
		}
		cout<<endl;
	}
	return 0;
}