include rt;
include run;
include icon;
fn main() {
	let source = run.tokens("return (9 + 2) * 3;");
	let pattern = run.tokens("$expr:left * $int:right");
	let replacement = run.tokens("$left + $right");
	let edited = icon.rewrite(source, pattern, replacement);
	rt.put_n(run.eval(edited)); rt.put_c(10);
	return 0;
}