#include <exception>
#include <iostream>
#include <boost/lexical_cast.hpp>

int main(int argc, char* argv[])
{
    using namespace boost;

    try
    {
        volatile int result = 0;
        int count = argc == 1 ? 100000 : lexical_cast<int>(argv[1]);

        for(; count > 0; --count)
            result += lexical_cast<char>(count % 10);

        return result;
    }
    catch(std::exception const& ex)
    {
        std::cerr << ex.what() << '\n';
    }
}