import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		long sum = 0;
		for (int i = 0; i < n; i++) {
			sum += sc.nextLong();
		}
		sc.close();

		if (sum % n == 0) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
}