func_code_string: #include <bits/stdc++.h>      using namespace std;      const int N = 300;   int a[N];      void solve(){       int n;       cin >> n;       for(int i = 0; i < n; i++){           cin >> a[i];       }          int left = 0, right = n - 1, index = 1;       while(left <= right){           if(index++ % 2){               cout << a[left++] <<    ;           }           else{               cout << a[right--] <<    ;           }       }       cout <<   n ;   }   int main(void){       ios::sync_with_stdio(false); cin.tie(NULL);       int t;       cin >> t;       while(t--) solve();       return 0;   }