// expect: 3/-3/2/
include rt;
void pn(int x) { rt.put_n(x); rt.put_c(10); }
const Z = 6 / 2;
const N = -7 / 2;
const P = 1 + 6 / 3 * 2 - 3;
fn main() { pn(Z); pn(N + 0); pn(P); return 0; }