text: from scipy.cluster.vq import kmeans, vq, whiten
  import numpy as np
  import matplotlib.pyplot as plt
  
  K = 3
  spott = []
  for i in range(500):
      spott.append((np.random.randint(50), np.random.randint(50)))
  spott = np.array(spott)
  print(spott.shape)