This time around, your program will not be so chatty. The program will just wait for you to type an integer, and then print a $0$ or $1$ to indicate whether or not that integer was prime. Here's some sample output of an interactive session $($assuming primetest is the name of the executabie ${?}^1)$:

$5.$ Porimetest

II

$1$

$12$

After $11$ the response is $1,$ indicating primality; after $12,$ the response is $a,$ meaning it is not prime. You can end the interactive session by