#include <iostream>
#include <iostream>
#include <locale>

template<typename T> class ThousandsSeparator : public std::numpunct<T> {
public:
    ThousandsSeparator(T Separator) : m_Separator(Separator) {}

protected:
    T do_thousands_sep() const override { return m_Separator; }

	std::string do_grouping() const override { return "\03"; }

private:
    T m_Separator;
};

int main(int argc, char **argv) {
	ThousandsSeparator<char> facet(',');
    std::cin.imbue(std::locale(std::cin.getloc(), &facet));
    int n;
    std::cin >> n;
    std::cout << n << "\n";
}