import numpy as np
import matplotlib.pyplot as plt

data1 = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
data2 = [9, 7, 5, 3, 1, 0, 5, 6, 3, 4]
data3 = [3, 1, 2, 2, 0, 3, 2, 1, 3, 4]

y = np.row_stack((data1, data2, data3))
x = np.arange(10)

fig, ax = plt.subplots()
ax.stackplot(x, y)
plt.show()