use std::io::Read; fn main() { let mut s = String::new(); std::io::stdin().read_to_string(&mut s).ok(); let v: Vec = s.split_whitespace().flat_map(str::parse).collect(); for i in 2..=v[0] { let mut a = v[i]; for j in i + 1..v[0] + 2 { a ^= v[j]; if a == v[1] { println!("Yes"); return; } } } println!("No") }