AtCoder ABC #067 [Rust]

abc067-a.rs

use std::io;
use std::str::FromStr;

fn main() {
    let stdin = io::stdin();
    let mut buf = String::new();
    stdin.read_line(&mut buf).ok();
    let mut it = buf.split_whitespace()
        .map(|n| i64::from_str(n).unwrap());
    let (a, b) = (it.next().unwrap(), it.next().unwrap());
    if a % 3 == 0 || b % 3 == 0 || (a + b) % 3 == 0 {
        println!("Possible");
    } else {
        println!("Impossible");
    }
}