# 実験するとわかるがXから意味あるスワップは1回だけ
# その組合せをすべて作って間に合うのか、それともスマートな方法あるか
# 123213, 12142334のような形になる

T = int(input())
for t in range(T):
    N = int(input())
    A = list(map(int, input().split()))
    change = -1
    X = [a for a in range(1, N+1)]*2
    for i in range(N*2):
        if A[i] != X[i]:
            change = i
            break
    if change == -1:
        ans = 'Yes'
    elif change == 0:
        ans = 'No'
    else:
        B = [a for a in range(1, change+1, 1)]
        B += [a for a in range(change-1, 0, -1)]
        B += [a for a in range(N, change-1, -1)]
        B += [a for a in range(change+1, N+1, 1)]
        #print('change', change, 'B', B)
        if A == B:
            ans = 'Yes'
        else:
            ans = 'No'
    print(ans)