use num::Integer;

fn main() {
    proconio::input! {
        a: u64,
        b: u64,
    }
    let s = proc(a, b);
    println!("{s}");
}

fn proc(a: u64, b: u64) -> u64 {
    let x = b.div_rem(&a);
    x.0 + if x.1 != 0 { 1 } else { 0 }
}

#[cfg(test)]
mod test {
    use super::*;
    #[test]
    fn test() {
        assert_eq!(proc(2, 5), 3);
    }
}