using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static string[] SList(long n) => Enumerable.Repeat(0, (int)n).Select(_ => ReadLine()).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var t = NN;
        var ans = new bool[t];
        for (var u = 0; u < t; ++u)
        {
            var n = NN;
            var a = NList;
            ans[u] = Judge(n, a);
        }
        WriteLine(string.Join("\n", ans.Select(f => f ? "Yes" : "No")));
    }
    static bool Judge(int n, int[] a)
    {
        var flength = 0;
        for (var i = 0; i + 1 < a.Length; ++i)
        {
            if (a[i] == 1 && a[i + 1] == n)
            {
                flength = i + 1;
                break;
            }
        }
        if (flength == 0)
        {
            for (var i = 0; i < n; ++i)
            {
                if (a[i] != i + 1 || a[i + n] != i + 1) return false;
            }
        }
        else
        {
            var nl = new List<int>();
            var div = flength / 2 + 1;
            for (var i = 1; i <= div; ++i) nl.Add(i);
            for (var i = div - 1; i > 0; --i) nl.Add(i);
            for (var i = n; i >= div; --i) nl.Add(i);
            for (var i = div + 1; i <= n; ++i) nl.Add(i);
            for (var i = 0; i < a.Length; ++i) if (a[i] != nl[i]) return false;
        }
        return true;
    }
}