for _ in range(int(input())):
	n = int(input())
	a = list(map(int, input().split()))
	x = list(range(1, n + 1)) * 2
	if a == x: print("Yes"); continue
	for i in range(n):
		a2 = x[:i] + x[i:i + n + 1][::-1] + x[i + n + 1:]
		if a2 == a: print("Yes"); break
	else:
		print("No")