use proconio::input;
use proconio::fastout;

#[fastout]
#[allow(non_snake_case)]
fn main() {
    input! {
        (N, M, K): (usize, usize, usize),
    }
    assert!(1 <= N && N <= 1_000_000_000);
    assert!(1 <= M && M <= 1_000_000_000);
    assert!(1 <= K && K <= 1_000_000_000);
    if M + K <= N {
        println!("Yes");
    }
    else {
        println!("No");
    }
}