namespace; include rt; fn f(d) { let u = 3, m = 4; if (d > 0) return u + m + d; return 0; } fn dmul(d) { return d * 4; } fn main() { let u = 1; rt.put_n(f(5)); rt.put_c(' '); rt.put_n(u); rt.put_c(' '); rt.put_n(dmul(2)); rt.put_c(10); return 0; }