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();
		int[] a = new int[n];
		for (int i = 0; i < n; i++) {
			a[i] = sc.nextInt();
		}
		sc.close();

		int g = 0;
		for (int i = 1; i < n; i++) {
			g = gcd(g, Math.abs(a[i] - a[i - 1]));
		}
		if (g % n == 0) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}

	static int gcd(int a, int b) {
		return b == 0 ? a : gcd(b, a % b);
	}
}