brary $>$ IT $140$: Introduction to Scripting home $>4\mathrm{.}2$: While loops

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CHALLENGE

$4\mathrm{.}2\mathrm{.}2$: Basic while loop with user input.

ACTIVITY

Write an expression that executes the loop body as long as the user enters a non$-$negative number.

Note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds and report "Program end never reached." The system doesn't print the test case that caused the reported message.

Sample outputs with inputs: $952-1$

Body

Body

Body

Done.

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$542836\mathrm{.}3878598\mathrm{.}43zqy7$

$1$ user$\_$num input $()$