#include using namespace std; #include using namespace atcoder; #define rep(i, n) for (ll i = 0; i < (n); ++i) #define rep1(i, n) for (ll i = 1; i <= n; ++i) #define reps(i, s, e) for (ll i = s; i <= e; ++i) #define all(v) v.begin(), v.end() template bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; } template bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; } using ll = long long; using ld = long double; using cp = complex; using pa = pair; using tup = tuple; using vp = vector>; using vtup = vector>; using st = string; using vs = vector; using vc = vector; using vvi = vector>; using vvc = vector>; using vi = vector; const ll MOD1 = 1000000007; const ll MOD2 = 998244353; const ll INF = (1LL << 60); void solve() { ll n; cin >> n; vi a(n * 2); vi x(n * 2); rep(i, n * 2) cin >> a[i]; rep(i, n * 2) x[i] = i % n + 1; vi t = x; bool ok = true; rep(i, n * 2) if (a[i] != x[i]) ok = false; if (ok) { cout << "Yes" << endl; return; } rep(i, n) { x = t; reverse(x.begin() + i + 1, x.begin() + n + i); ok = true; rep(j, n * 2) { if (a[j] != x[j]) ok = false; } if (ok) { cout << "Yes" << endl; return; } } cout << "No" << endl; } int main() { ll t; cin >> t; while (t--) { solve(); } }