use std::io::*; use std::str::*; fn read(sl: &mut StdinLock) -> Option { let s = sl.by_ref().bytes().map(|c| c.unwrap() as char) .skip_while(|c| c.is_whitespace()) .take_while(|c| !c.is_whitespace()) .collect::(); s.parse::().ok() } fn main() { let s = stdin(); let mut sl = s.lock(); let a = read::(&mut sl).unwrap(); let b = read::(&mut sl).unwrap(); let n = (b + (a - 1)) / a; println!("{}", n); }