import matplotlib.pyplot as plt

# Sample data
categories = ['A', 'B', 'C', 'D']
values = [10, 15, 7, 12]

# Create a bar plot
plt.bar(categories, values)

# Add labels and title
plt.xlabel('Categories')
plt.ylabel('Values')
plt.title('Bar Plot of Categories and Values')

# Show the plot
plt.show()

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