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