# coding: utf-8
from ch05.layer_naive import *

apple = 100
apple_num = 2
tax = 1.1

#layer
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)

print(price) # 220

#backward
dprice = 1
dapple_price,dtax = mul_tax_layer.backward(dprice)
dapple,dapple_num = mul_apple_layer.backward(dapple_price)
print(dapple,dapple_num,dtax) # 2.2 110 200
