n,m=input().split() n,m=int(n),int(m) a=[] b=[] for i in range(n): c=input().split() c=[int(t) for t in c] a.append(c) for i in range(n): j=input().split() j=[int(t) for t in j] b.append(j) for i in range(n): for j in range(m): a[i][j]=a[i][j]+b[i][j] print(a[i][j],end=" ") print()