fig, axs = plt.subplots(2, 2, figsize=(8, 8))
axs = axs.flat
for n, ax in enumerate(axs):
    ax.imshow(np.random.randn(10, 10), interpolation='none')
ax.text(-0.1, 1.1, string.ascii_uppercase[n], transform=ax.transAxes, size=
    20, weight='bold')
Matplotlib: аннотируйте подграфики на рисунке с помощью A, B, C