func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, m, k;     cin >> n >> m >> k;     int a[m];     for (int i = 0; i < m; ++i) a[i] = 1e7;     for (int i = 0; i < n; ++i) {       int r, c;       cin >> r >> c;       a[r - 1] = min(a[r - 1], c);     }     int ans = 0;     for (int i = 0; i < m; ++i) ans += a[i];     cout << min(ans, k) << endl;     return 0;   }   