#Three lines to make our compiler able to draw:

import sys

import matplotlib

matplotlib.use('Agg')

​

import matplotlib.pyplot as plt

import numpy as np

​

y1 = np.array([3, 8, 1, 10])

y2 = np.array([6, 2, 7, 11])

​

plt.plot(y1)

plt.plot(y2)

​

plt.show()

​

#Two  lines to make our compiler able to draw:

plt.savefig(sys.stdout.buffer)

sys.stdout.flush()

​