<｜begin▁of▁sentence｜>### Instruction:
As a wildlife biologist specializing in the study of animal behavior and habitat conservation, you've been tasked with analyzing the spatial relationships within a network of animal territories. You have access to a dataset containing observations of territorial boundaries between animals. Using the GraphBase.layout_drl function from igraph, you need to calculate and record the positions of each vertex in the network according to the DrL layout algorithm. This will help you visualize and understand the spatial distribution of animal territories, aiding in your research on habitat usage and potential conservation strategies.
### Response:
from igraph import Graph

# Create a graph
edges = [(0, 1), (1, 2), (2, 3), (3, 0), (0, 2), (1, 3)]
g = Graph(edges)

# Compute the DrL layout with 2D coordinates
layout = g.layout_drl()

# Print the layout coordinates
for vertex in range(len(layout)):
    print(f'Vertex {vertex}:', layout[vertex])
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