import matplotlib.pyplot as plt

# Sample data: (x, y)
x = [1, 2, 3, 4, 5]
y = [1, 4, 9, 16, 25]

# Plot the data using pyplot.
plt.plot(x, y, marker='x') # 'o' for markers

# Add labels and title
plt.xlabel("Number")
plt.ylabel("Number squared")
plt.title("Square (Pyplot verson)")

# Display the plot
plt.show()

# Create a figure and axes objects explicitly
fig, ax = plt.subplots()

# Plot data using the ax.plot() method
ax.plot(x, y, marker='o')

# Set labels and title using axes methods
ax.set_xlabel("Number")
ax.set_ylabel("Number squared")
ax.set_title("Square (OO version)")

# Display the plot
plt.show()