Problem:
Score: 100 points

Problem Statement

E869120 has A 1-yen coins and infinitely many 500-yen coins.

Determine if he can pay exactly N yen using only these coins.

Constraints

N is an integer between 1 and 10000 (inclusive).

A is an integer between 0 and 1000 (inclusive).

Input

Input is given from Standard Input in the following format:

N
A

Output

If E869120 can pay exactly N yen using only his 1-yen and 500-yen coins, print Yes; otherwise, print No.

Sample Input 1

2018
218

Sample Output 1

Yes

We can pay 2018 yen with four 500-yen coins and 18 1-yen coins, so the answer is Yes.

Sample Input 2

2763
0

Sample Output 2

No

When we have no 1-yen coins, we can only pay a multiple of 500 yen using only 500-yen coins. Since 2763 is not a multiple of 500, we cannot pay this amount.

Sample Input 3

37
514

Sample Output 3

Yes

Solution in Rust (1.15.1) (judge verdict: Accepted)


fn main(){
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).unwrap();
	let n = s.trim().parse::<i32>().unwrap();
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).unwrap();
	let a = s.trim().parse::<i32>().unwrap();
	let ten = ((n / 10) % 10) * 10 + (n % 10);
	let hund = ((n / 100) % 10) * 100 + ((n / 10) % 10) * 10 + (n % 10);
	let hyaku = ((n / 100) % 10) > 5;
	if ((n / 100) % 100) % 5 == 0 {
		println!("{}", if a - ten >= 0 { "Yes" } else { "No" });
	} else if hyaku {
		println!("{}", if a - (hund - 500) >= 0 { "Yes" } else { "No" });
	} else {
		println!("{}", if a - hund >= 0 { "Yes" } else { "No" });
	}
}