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):
        Y = X[:i] + X[i:i+N+1][::-1] + X[i+N+1:]
        if Y == A:
            print('Yes')
            flag = True
            break
    if flag == False:
        print('No')