#include using namespace std; #define rep(i,n) for(ll i=0;i=0;i--) #define perl(i,r,l) for(ll i=r-1;i>=l;i--) #define fi first #define se second #define pb push_back #define ins insert #define pqueue(x) priority_queue,greater> #define all(x) (x).begin(),(x).end() #define CST(x) cout<; using vvl=vector>; using pl=pair; using vpl=vector; using vvpl=vector; const ll MOD=1000000007; const ll MOD9=998244353; const int inf=2e9+1; const ll INF=4e18; const ll dy[8]={-1,0,1,0,1,1,-1,-1}; const ll dx[8]={0,-1,0,1,1,-1,1,-1}; template inline bool chmax(T &a, T b) { return ((a < b) ? (a = b, true) : (false)); } template inline bool chmin(T &a, T b) { return ((a > b) ? (a = b, true) : (false)); } void solve(){ ll n;cin >> n; vl x(n*2); rep(i,n*2)cin >> x[i],x[i]--; vl v(n*2); rep(i,n*2)v[i]=i%n; if(v==x){ cout << "Yes" << endl; return; } rep(i,n){ if(x[i]-1==x[i+1]){ //rep(j,n*2)cout << v[j] <<" ";cout << endl; reverse(v.begin()+i,v.begin()+i+n+1); //cout << i << endl; //rep(j,n*2)cout << v[j] <<" ";cout << endl; if(v==x)cout << "Yes" << endl; else cout << "No" << endl; return; } } cout << "No" << endl; } int main(){ ll t;cin >> t; while(t--)solve(); }