#include <stdio.h>
int main(void) {
	int n, i, a[1<<19], ok = 1;
	scanf("%d", &n);
	for(i = 0; i < n; ++i) {
		scanf("%d", &a[i]);
	}
	for(i = 0; i + 1 < n; ++i) {
		ok &= (a[i + 1] - a[i]) % n == 0;
	}
	printf(ok ? "Yes\n" : "No\n");
}