# coding: utf-8
from google.colab import drive
drive.mount('/content/drive',force_remount=True)
bd = 'drive/My Drive/Colab Notebooks/mymodules'
import sys, os
import numpy as np
sys.path.append(bd)
from layer_naive import *
apple = 100
apple_num = 2
tax = 1.1
mul_apple_layer = MulLayer()
mul_tax_layer = MulLayer()
# forward
apple_price = mul_apple_layer.forward(apple, apple_num)
price = mul_tax_layer.forward(apple_price, tax)
# backward
dprice = 1
dapple_price, dtax = mul_tax_layer.backward(dprice)
dapple, dapple_num = mul_apple_layer.backward(dapple_price)
print("price:", int(price))
print("dApple:", dapple)
print("dApple_num:", int(dapple_num))
print("dTax:", dtax)