import sys
input = sys.stdin.readline

T=int(input())
for tests in range(T):
    N=int(input())
    A=list(map(int,input().split()))

    X=list(range(1,N+1))*2

    if X==A:
        print("Yes")
        continue

    for i in range(N):
        Y=X[:i]+X[i:i+N+1][::-1]+X[i+N+1:]
        #print(Y)
        if Y==A:
            print("Yes")
            break
    else:
        print("No")