use std::collections::VecDeque; fn main() { let mut ab = String::new(); std::io::stdin().read_line(&mut ab).ok(); let ab: Vec = ab.trim().split_whitespace().map(|s| s.parse().unwrap()).collect(); let a = ab[0]; let b = ab[1]; if a == 0 || b == 0 { println!("Yes"); return; } let mut deque = VecDeque::new(); deque.push_back((a, b)); while let Some((a, b)) = deque.pop_front() { if a % 2 == 0 { let na = a / 2; let nb = b - 1; if nb == 0 { println!("Yes"); return; } deque.push_back((na, nb)); } if b % 2 == 0 { let na = a - 1; let nb = b / 2; if na == 0 { println!("Yes"); return; } deque.push_back((na, nb)); } } println!("No"); }