print('Hello world!')

print("hello taiwan acer")

i = 1

while i<4:
    i+=1
    print("Anup Tirkey is a Mechanical Engineer.");

import matplotlib.pyplot as plt
import numpy as np

x= ["oct","nov","dec"]
y = [55000,67000,78000]

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


import matplotlib.pyplot as plt
import numpy as np

x = np.array(["united stats","china","germany"])
y = np.array([200,400,500])

plt.barh(x,y)
plt.show()

print("hello taiwan world acer")