results1=[] results2=[] n,m=map(int,input().split()) for x in range(n): a=list(map(int,input().split())) results1.append(a) for x in range(n): b=list(map(int,input().split())) results2.append(b) c=[[0 for lie in range(m)] for hang in range(n)] for i in range(n): for j in range(m): c[i][j]=results1[i][j]+results2[i][j] print(c[i][j],end=" ") print()