exp

#include <iostream>
using namespace std;
#include <algorithm>
#include <cmath>
#include <vector>
#include <sstream>

class DivisionByZero{};

using namespace std;

int main()
{
    int a, b;
    try {
        if(b == 0) {
            throw DivisionByZero();
        }

    }
    catch(DivisionByZero x) {
        cout << "" << "\n";
    }
    catch(...) {

    }
    cout << "\n";
}