#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); i++)
using namespace std;
using ll = long long;
using pii = pair<int, int>;

int main() {
  int t;
  cin >> t;
  while (t--) {
    int n;
    cin >> n;
    int n2 = n * 2;
    vector<int> a(n2);
    rep(i, n2) {
      cin >> a[i];
      a[i]--;
    }
    vector<int> x(n2);
    rep(i, n2) x[i] = i % n;
    bool ok = true;
    rep(i, n2) {
      if (x[i] != a[i]) {
        int l = i, r = i + n - 2;
        if (r >= n2) {
          ok = false;
          break;
        }
        rep(j, r - l + 1) if (x[l] != a[r]) ok = false;
        i += n - 1;
      }
    }
    if (ok) cout << "Yes" << endl;
    else cout << "No" << endl;
  }
  return 0;
}