#[macro_export] macro_rules! setup { { mut $input:ident: SplitWhitespace $(,)? } => { use std::io::Read; let mut buf = String::new(); std::io::stdin().read_to_string(&mut buf).unwrap(); let mut $input = buf.split_whitespace(); }; } #[macro_export] macro_rules! parse_next { ($str_iter:expr) => { $str_iter.next().unwrap().parse().unwrap() }; } fn main() { setup! { mut input: SplitWhitespace }; let n: u64 = parse_next!(input); let ans = { let cbrt = (n as f64).cbrt(); match cbrt.trunc() == cbrt { true => { let cbrt = cbrt as u64; match cbrt * cbrt * cbrt == n { true => "Yes", false => "No", } } false => "No", } }; println!("{}", ans); }