use proconio::{fastout, input};

#[fastout]
fn main() {
    input! {
        n: i32,
        k: i32,
        t: i32,
    }

    println!("{}", output(solve(n, k, t)))
}

fn solve(n: i32, k: i32, t: i32) -> bool {
    k as i64 * t as i64 >= n.abs() as i64
}

fn output(ans: bool) -> &'static str {
    match ans {
        true => "Yes",
        false => "No",
    }
}