fn solve(_reader: R, _writer: &mut W) { let mut _scanner = Scanner::new(_reader); #[allow(unused_macros)] macro_rules! scan { ($t:ty) => { _scanner.next::<$t>() }; ($($t:ty),+) => { ($(scan!($t)),+) }; ($t:ty; $n:expr) => {{ let mut vec = Vec::with_capacity($n); for _ in 0..$n { vec.push(scan!($t)); } vec }}; ($t_0:ty, $t_1:ty; $n:expr) => { scan!($t_0 = 0, $t_1 = 1; $n) }; ($t_0:ty, $t_1:ty, $t_2:ty; $n:expr) => { scan!($t_0 = 0, $t_1 = 1, $t_2 = 2; $n) }; ($($t:ty = $i:tt),+; $n:expr) => {{ let mut vecs = ($(Vec::<$t>::with_capacity($n)),+); for _ in 0..$n {$( vecs.$i.push(scan!($t)); )+} vecs }}; } #[allow(unused_macros)] macro_rules! println { () => { writeln!(_writer).unwrap() }; ($fmt:expr) => { writeln!(_writer, $fmt).unwrap() }; ($fmt:expr, $($arg:tt)*) => { writeln!(_writer, $fmt, $($arg)*).unwrap() }; } let n = scan!(usize); for i in 1..n + 1 { let ans = match (i % 3 == 0, i % 5 == 0) { (true, true) => "FizzBuzz".to_string(), (true, false) => "Fizz".to_string(), (false, true) => "Buzz".to_string(), (false, false) => i.to_string(), }; println!("{}", ans); } } fn main() { let stdin = stdin(); let stdout = stdout(); #[cfg(debug_assertions)] let mut writer = stdout.lock(); #[cfg(not(debug_assertions))] let mut writer = ::std::io::BufWriter::new(stdout.lock()); solve(stdin.lock(), &mut writer); writer.flush().unwrap(); } use io::Scanner; use std::io::{stdin, stdout, BufRead, Write}; pub mod io { pub use self::scanner::*; mod scanner { use std::fmt::Debug; use std::io::BufRead; use std::str; use std::str::FromStr; pub struct Scanner { reader: R, buffer: Vec, position: usize, } impl Scanner { pub fn new(reader: R) -> Self { Scanner { reader: reader, buffer: vec![], position: 0 } } pub fn next(&mut self) -> T where T::Err: Debug, { if self.buffer.is_empty() { self.read_line(); } loop { match self.buffer.get(self.position) { Some(&b' ') => self.position += 1, Some(&b'\n') => self.read_line(), Some(_) => break, None => panic!("EOF reached"), } } let start = self.position; loop { match self.buffer.get(self.position) { Some(&b' ') | Some(&b'\n') | None => break, Some(_) => self.position += 1, } } str::from_utf8(&self.buffer[start..self.position]).unwrap().parse().unwrap() } fn read_line(&mut self) { self.position = 0; self.buffer.clear(); self.reader.read_until(b'\n', &mut self.buffer).unwrap(); } } } }