#include <iostream> #include <cstdio> #include <cmath> using namespace std; int main(){ int n,m,k=0,j=0,x=0,c=0; cin>>n>>m; int v[n][m]; int h[n][m]; for(k=0;k<n;k++){ for(j=0;j<m;j++) cin>>v[k][j];} for(k=0;k<n;k++){ for(j=0;j<m;j++) cin>>h[k][j];} for(k=0;k<n;k++){ for(j=0;j<n;j++){ x=v[k][j]+h[k][j]; c++; if (c=n) cout<<x<<" "<<endl; else cout<<x<<" ";}} return 0; }