print('Hello world!')

print("Hello Taiwan Acer")

print("hello apple")

values = range(9)

for x in values:
    print(x)

for j in values:
    if j==4:
        break
    print(j)

i = 1

while(i<=10):
    print('6*',(i),'=',6*i)

    if i == 8:
        break
    i = i+1

import matplotlib.pyplot as plt
import numpy as np

x = np.array([0,6])
y = np.array([10,80])

plt.xlabel("months")
plt.ylabel("sales")
plt.plot(x,y)
plt.show()