func_code_string:                               ////JAI SHREE RAM////   #include <iostream>   #include<bits/stdc++.h>   using namespace std;   const long long int INF = (long long)1e15;   const long long int mod = 1e9+7;   #define ll long long   #define f(i,a,b) for(int i=a;i<b;i++)   #define pb push_back   #define all(c) c.begin(),c.end()   #define rall(c) c.rbegin(),c.rend()   #define yes cout<< YES n    #define no cout<< NO n    #define sd second   #define ft first   //   bool cmp(const pair<int,int> &a, const pair<int,int> &b)   {       //return (a.sd>=b.sd);       return abs(a.ft)+abs(a.sd) < abs(b.ft)+abs(b.sd);   }      void solve()   {       int n;cin>>n;       int o=0;       n*=2;       f(i,0,n){           int x;cin>>x;           if(x%2) o++;       }       if(o==n/2) yes;       else no;   }   int main()   {       //ios_base::sync_with_stdio(false); cin.tie(0);cout.tie(0);       int t=1;       cin>>t;          while(t--)       {           solve();       }       return 0;   }      