func_code_string: #include <bits/stdc++.h>   using namespace std;   int32_t main() {     long long n, k;     cin >> n >> k;     vector<long long> a(n);     vector<long long> b(n);     vector<long long> c(n);     long long sum1 = 0;     for (long long i = 0; i < n; i++) {       cin >> a[i];     }     for (long long i = 0; i < n; i++) {       cin >> b[i];       sum1 += b[i];     }     for (long long i = 0; i < n; i++) {       c[i] = b[i] - a[i];     }     sort(c.begin(), c.end());     reverse(c.begin(), c.end());     long long sum2 = 0;     for (long long i = 0; i < k; i++) {       sum2 += c[i];     }     for (long long i = k; i < n; i++) {       if (c[i] > 0) sum2 += c[i];     }     cout << sum1 - sum2 << endl;   }   