nput and random number generation</span>
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<p><span class="caption">リスト13-2: ユーザ入力や乱数生成をシミュレートするハードコードされた値がある<code>main</code>関数</span></p>
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We’ve hardcoded the variable `simulated_user_specified_value` as 10 and the
variable `simulated_random_number` as 7 for simplicity’s sake; in an actual
program, we’d get the intensity number from the app frontend, and we’d use the
`rand` crate to generate a random number, as we did 