What will be the output of the following C++ code?

#include <iostream>
using namespace std;
int main()
{
    int a = 10, b = 20, c = 30;
    float  d;
    try
    {
        if ((a - b) != 0)
        {
            d = c / (a - b);
            cout << d;
        }
        else
        {
            throw(a - b);
        }
    }
    catch (int i)
    {
        cout<<"Answer is infinite "<<i;
    }
}