mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    for _ in range(int(input())):
        N = int(input())
        A = list(map(int, input().split()))
        B = list(range(1, N+1)) + list(range(1, N+1))

        ok = 0
        if A == B:
            ok = 1
        for i in range(N):
            C = B[:i] + B[i:i+N+1][::-1] + B[i+N+1:]
            if C == A:
                ok = 1
                break
        if ok:
            print("Yes")
        else:
            print("No")


if __name__ == '__main__':
    main()