hr23.cpp

#include <iostream>
#include <exception>
#include <string>
#include <stdexcept>
#include <vector>
#include <cmath>
using namespace std;

class Server {
private:
  static int load;
public:
  static int compute(long long A, long long B) {
    load += 1;
    if(A < 0) {
      throw std::invalid_argument("A is negative");
    }
    vector<int> v(A, 0);
    int real = -1, cmplx = sqrt(-1);
    if(B == 0) throw 0;
    real = (A/B)*real;
    int ans = v.at(B);
    return real + A - B*ans;
  }
  static int getLoad() {
    return load;
  }
};
int Server::load = 0;

int main() {
  int T; cin >> T;
  while(T--) {
    long long A, B;
    cin >> A >> B;
    try {
      cout << Server::compute(A, B) << endl;
    }
    catch (bad_alloc& ba) {
      cout << "Not enough memory" << endl;
    } 
    catch (invalid_argument& e) {
      cout << "Exception: " << e.what() << endl;
    }
    catch (out_of_range& e) {
      cout << "Exception: " << e.what() << endl;
    }
    catch (exception& e) {
      cout << "Exception: " << e.what() << endl;
    }
  }

  cout << Server::getLoad() << endl;
  return 0;
}