Write a while loop that repeats while user$\_$num $1.$ In each loop iteration, first divide user$\_$num by $2,$ then print user$\_$num.

Sample output with input: $20$

$10\mathrm{.}0$

$5\mathrm{.}0$

$2\mathrm{.}5$

$1\mathrm{.}25$

$0\mathrm{.}625$

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.

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$1use{r}_{n}um=$ int $(input())$

$I\text{'}.$ Your solution goes here

$4$