Explain what does the following R script do and fill the missing word?

$```\{$r$\}$

x $<--$pi

# Try different values of x: $5/7,-$sqrt$(9),(-2)^3$

out $<-$ x

if $($x $<0)\{$

# Fill the missing statement

out $<--$x

$\}$

cat$("$The Absolute value of $",$ x$,"$ is $",$ out $,"$

$")$