use proconio::{input, fastout};

#[fastout]
fn main() {
	input! {
		n: u32,
		a: u32,
		h: u32,
		m: u32,
		s: u32,
	}
	
	println!("{}", output(solve(n, a, h, m, s)));
}

fn solve(n: u32, a: u32, h: u32, m: u32, s: u32) -> bool {
    n * a >= 86400 - (h * 3600 + m * 60 + s)
}

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