// expect: 104/105/-1/
// spec 8.3: input after the backtick line
include rt;
void pn(int x) { rt.put_n(x); rt.put_c(10); }
fn main() { pn(rt.get_c()); pn(rt.get_c()); rt.get_c(); pn(rt.get_c()); return 0; }
`hi