struct Scanner {
    tokens: Vec<String>,
    index: usize,
}

impl Scanner {
    fn new() -> Self {
        Scanner {
            tokens: Vec::new(),
            index: 0,
        }
    }

    fn next(&mut self) -> String {
        while self.index == self.tokens.len() {
            let mut line = String::new();
            std::io::stdin().read_line(&mut line).expect("input error");
            self.tokens = line.split_whitespace().map(String::from).collect();
            self.index = 0;
        }
        let result = self.tokens[self.index].clone();
        self.index += 1;
        result
    }

    fn next_i32(&mut self) -> i32 {
        self.next().parse().unwrap()
    }
}

fn cdiv(a: i32, b: i32) -> i32 {
    (a / b) + if a % b == 0 { 0 } else { 1 }
}

fn main() {
    let mut scanner = Scanner::new();
    let a = scanner.next_i32();
    let b = scanner.next_i32();
    println!("{}", cdiv(b, a));
}