fn main() {
    let mut temp = String::new();
    std::io::stdin().read_line(&mut temp).ok();
    let temp: Vec<isize> = temp.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let x = temp[0];
    let y = temp[1];
    let z = temp[2];

    let summary = x + y + z;
    if summary % 3 > 0 {
        println!("No");
        return;
    }
    println!("Yes");
}