# include<iostream> # include<cstdio> using namespace std; int main(){ int n,m; cin>>n>>m; int a[n][m],b[n][m]; for(int i=0;i<n;i++){ for(int j=0;j<m;j++) cin>>a[i][j]; } for(int i=0;i<n;i++){ for(int j=0;j<m;j++) cin>>b[i][j]; } for(int i=0;i<n;i++){ for(int j=0;j<m;j++){ cout<<a[i][j]+b[i][j]<<" "; } cout<<endl; } return 0; }