#decision making

# if () {} else {}

print "please key in an integer: \n";
$r = <STDIN>;

chomp $r;

if ($r == 10) {
	print '$r is 10', "\n";
} else {
	print '$r is something other than 10...',"\n";
}


# ==; >; <; >=; <=; !=  
#note: only for numerical values