def solve():
    n = int(input())
    A = list(map(int, input().split()))
    B = []
    ok = True
    for i in range(n):
        B.append(i + 1)
    for i in range(n):
        B.append(i + 1)
    if A == B:
        print("Yes")
        return
    for i in range(n):
        A[i:i+n+1] = A[i:i+n+1][::-1]
        if A == B:
            print("Yes")
            return
        A[i:i+n+1] = A[i:i+n+1][::-1]
    print("No")

for _ in range(int(input())):
    solve()