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