func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     long long t;     cin >> t;     while (t--) {       long long n;       cin >> n;       vector<long long> v(n);       set<long long> s;       for (long long x = 0; x < n; x++) {         cin >> v[x];       }       long long index = -1;       if (v[n - 1] > v[n - 2]) {         for (long long x = n - 1; x >= 1; x--) {           if (v[x] < v[x - 1]) {             index = x;             break;           }         }         cout << (index == -1 ? 0 : index) <<   n ;       } else {         long long count = 0;         long long index = -1;         for (long long x = n - 1; x > 0; x--) {           if (v[x] < v[x - 1] && count == 1) {             index = x;             break;           }           if (v[x] > v[x - 1]) {             count = 1;           }         }         cout << (index == -1 ? 0 : index) <<   n ;       }     }   }   