#include <cstdio>
#define maxn 500000

int n;
int a[maxn + 5];

int main()
{
	scanf("%d", &n);
	for (int i = 1; i <= n; ++i)
		scanf("%d", &a[i]);
	bool ans = true;
	for (int i = 1; i < n; ++i)
		if ((a[i + 1] - a[i]) % n != 0)
			ans = false;
	if (ans)
		puts("Yes");
	else
		puts("No");
	return 0;
}