map(int,input().split())
<=0 or n<=0:
print("Invalid input")
exit()
ix1=[list(map(int,input().split()))for _ in range(m)]
ix2=[list(map(int,input().split()))for _ in range(n)]
ny(len(row)!=n for row in matrix1) or any (len(row)!=n for row in matrix2):
print("Invalid input")
exit()
i in range(m):
result+[matrix1[i][j]+matrix2[i][j] for j in range(n)]
print(*result)