#Three lines to make our compiler able to draw:

import sys

import matplotlib

matplotlib.use('Agg')

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import matplotlib.pyplot as plt

import numpy as np

​

x = np.array([5,7,8,7,2,17,2,9,4,11,12,9,6])

y = np.array([99,86,87,88,111,86,103,87,94,78,77,85,86])

sizes = np.array([20,50,100,200,500,1000,60,90,10,300,600,800,75])

​

plt.scatter(x, y, s=sizes, alpha=0.5)

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plt.show()

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#Two  lines to make our compiler able to draw:

plt.savefig(sys.stdout.buffer)

sys.stdout.flush()

​

​

​