<｜begin▁of▁sentence｜>### Instruction:
Imagine you're a Video Game Designer developing an innovative, interactive strategy game. As part of your creative process, you're conceptualizing a network graph system which represents different zones within your game world. In this layout, you initially have a zone system modeled as a cycle graph (C4) composed of four distinct zones or nodes.

Within the game plot, however, zones 1 and 3 share certain similarities and need to fuse into one, while also keeping any inner features intact. For instance, if these zones are part of the same kingdom, you might want to merge them into a single larger zone that maintains any self-looping paths, symbolizing the civil wars existing within the kingdom.

The question for you to ponder, then, is: How can you combine zones 1 and 3 into a single larger zone, preserving any self-looping paths or bridges between them, without altering the original overall structure of the game world? Don't forget, you need to do this while causing no alterations to your original game map, ensuring it remains available for potential future use.
### Response:
import networkx as nx

G = nx.cycle_graph(4)

M = nx.contracted_nodes(G, 1, 3, self_loops=True, copy=True)

print(list(M.edges()))
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