The following table shows the distance (in miles) between cities A, B, C, and D. When a traveling salesman visits all four cities, how many miles does he travel if he uses the cheapest link algorithm? 
Definitions:
System-1
Fast, automatic, intuitive approach of processing information, often contrasted with the slower, more deliberate reasoning of System 2.
System-2
A term used in psychology referring to the analytical and conscious mode of thinking, characterized by slower, more deliberate, and logical reasoning.
Ethical Decisions
Choices made based on moral principles and values, considering what is right and wrong.
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