func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long INF = 9e18;   const long long N = 2e5 + 5;   const long long M = 1e9 + 7;   bool chk(vector<long long> a, long long x, long long y) {     long long A = 0, B = 0;     for (long long i = 2; i < a.size(); i++)       if (a[i] > a[i - 1] && a[i] > a[i + 1])         A++;       else if (a[i] < a[i - 1] && a[i] < a[i + 1])         B++;     if (A == x && B == y) return 1;     return 0;   }   signed main() {     ios_base::sync_with_stdio(0), cin.tie(0);     long long tests;     cin >> tests;     while (tests--) {       vector<long long> a;       long long n, x, y;       bool ok = 0;       cin >> n >> x >> y;       if (abs(x - y) > 1 || x + y > n - 2) {         cout <<  -1 n ;         continue;       }       if (x >= y) {         long long l = 1;         long long r = n;         while (l <= r) {           a.push_back(l++);           if (l > r) break;           a.push_back(r--);         }         long long idx = 1 + 2 * y;         if (x > y) idx++;         sort(a.begin() + idx, a.begin() + n);         if (x > y) reverse(a.begin() + idx, a.begin() + n);       } else {         long long l = 1;         long long r = n;         while (l <= r) {           a.push_back(r--);           if (l > r) break;           a.push_back(l++);         }         long long idx = 2 * y;         sort(a.begin() + idx, a.begin() + n);       }       for (auto h : a) cout << h <<    ;       cout <<   n ;     }   }   