t = int(input()) for _ in range(t): n = int(input()) a = list(map(int, input().split())) b = [x for x in range(1, n+1)] c = [x for x in range(1, n+1)] bc = b + c flag = False if bc == a: flag = True else: for i in range(n): j = i + n tmp = bc[:i] + bc[i:j+1][::-1] + bc[j+1:] if tmp == a: flag = True print("Yes" if flag else "No")