t = int(input())
for _ in range(t):
    n = int(input())
    A = list(map(int, input().split()))
    X = list(range(1, n+1))+list(range(1, n+1))
    if A == X:
        print('Yes')
        continue
    flag = False
    for i in range(n):
        B = X[0:i]+list(reversed(X[i:i+n+1]))+X[i+n+1:]
        if A == B:
            flag = True
            break
    if flag:
        print('Yes')
    else:
        print('No')