// expect: 45/
// spec 4.10.1: o3 { } marks a block
include rt;
void pn(int x) { rt.put_n(x); rt.put_c(10); }
fn main() {
	int t = 0;
	o3 { int s = 0; for (int i = 0; i < 10; i++) s += i; t = s; }
	pn(t);
	return 0;
}
// zc0: skip