func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long MOD = 1e9 + 7;   const long long INF = 1e9 + 9;   const long long N = 500500;   signed main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     long long T;     cin >> T;     while (T--) {       long long n, k;       cin >> n >> k;       string s, t;       cin >> s;       vector<pair<long long, long long> > ans;       for (long long i = 1; i <= k - 1; i++) {         t +=  () ;       }       for (long long i = 1; i <= (n - (2 * k) + 2) / 2; i++) {         t +=  ( ;       }       for (long long i = 1; i <= (n - (2 * k) + 2) / 2; i++) {         t +=  ) ;       }       for (long long i = 0; i < n; i++) {         if (s[i] == t[i]) continue;         for (long long j = i + 1; j < n; j++) {           if (s[j] == t[i]) {             ans.push_back({i + 1, j + 1});             reverse(s.begin() + i, s.begin() + j + 1);             break;           }         }       }       cout << ans.size() <<   n ;       for (auto z : ans) {         cout << z.first <<     << z.second <<   n ;       }     }     return 0;   }   