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): c = input().split() c = [int(t) for t in c] b.append(c) 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()