fn main() {
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).ok();
	let n = s
		.split_whitespace()
		.flat_map(str::parse::<u32>)
		.sum::<u32>()
		% 3 == 0;
	println!("{}", if n { "Yes" } else { "No" })
}