use std::io::Read; fn get_word() -> String { let stdin = std::io::stdin(); let mut stdin=stdin.lock(); let mut u8b: [u8; 1] = [0]; loop { let mut buf: Vec = Vec::with_capacity(16); loop { let res = stdin.read(&mut u8b); if res.unwrap_or(0) == 0 || u8b[0] <= b' ' { break; } else { buf.push(u8b[0]); } } if buf.len() >= 1 { let ret = String::from_utf8(buf).unwrap(); return ret; } } } #[allow(dead_code)] fn get() -> T { get_word().parse().ok().unwrap() } fn ok(n: i64, d: usize) -> bool { if d == 0 { return n == 0; } if n >= 1 << (d + 1) { return false; } // subtract [1, 1, 2, 4, ...] from the array if n < 1 << (d - 1) { return false; } if ok(n - (1 << (d - 1)), d - 1) { return true; } // subtract [1, 2, 4, 8, ...] from the array let val = (1 << d) - 1; if n < val { return false; } ok(n - val, d - 1) } fn main() { let n: i64 = get(); for d in 0..31 { if ok(n, d) { println!("YES"); return; } } println!("NO"); }