t = int(input())
for _ in range(t):
  N = int(input())
  A = list(map(int, input().split()))
  for i in range(N):
    X = []
    for n in range(N):
      X.append(n+1)
    for n in range(N):
      X.append(n+1)
    B = []
    if A == X:
      print("Yes")
      break
    for k in range(i):
      B.append(X[k])
    for k in range(i+N, i, -1):
      B.append(X[k])
    for k in range(i+N, 2*N):
      B.append(X[k])
    if A == B:
      print("Yes")
      break
  else:
    print("No")