#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int n,m; cin>>n>>m; int a[n][m],b[n][m]; for(int i=0;i<=n-1;i++){ for(int j=0;j<=m-1;j++){ cin>>a[i][j]; } } for(int i=0;i<=n-1;i++){ for(int j=0;j<=m-1;j++){ cin>>b[i][j]; } } for(int i=0;i<=n-1;i++){ for(int j=0;j<=m-1;j++){ cout<<a[i][j]+b[i][j]<<" "; } cout<<endl; }