func_code_string: #include <bits/stdc++.h>   using namespace std;   int Set(int N, int pos) { return N = N | (1 << pos); }   int reset(int N, int pos) { return N = N & ~(1 << pos); }   bool check(int N, int pos) { return (bool)(N & (1 << pos)); }   string st, st2, st3, st4, ans;   int main() {     ios_base::sync_with_stdio(0), cin.tie(NULL), cout.tie(NULL);     int i, j, a, b, n, m, x, y, ck, t, r, rem, cnt, lo, hi, sum, cs = 1;     cin >> n >> m;     cin >> st;     a = b = m / 2;     for (i = 0; i < n; i++) {       if (st[i] ==  (  && a > 0) ans +=  ( , a--;       if (st[i] ==  )  && b > 0) ans +=  ) , b--;     }     cout << ans;   }   