include rt;
include run;
include icon;
fn main() {
	let q = run.tokens("return 12;");
	let pattern = run.tokens("1 + 2"), replacement = run.tokens("5");
	let r = icon.rewrite(q, pattern, replacement);
	rt.put_n(run.eval(r)); rt.put_c(10);
	rt.put_n(q[0] == r[0]); rt.put_c(10);
	return 0;
}