#include <fstream>
#include <string>
std::string Input = "/home/christian/apps/standardinput/date.in";
std::string Output = "/home/christian/apps/standardoutput/date.out";
#if INFOARENA
    Input = "adunare.in";
    Output = "adunare.out";
#endif

std::ifstream fi(Input);
std::ofstream fo(Output);

int main()
{
    int a, b;
    fi>>a>>b;
    fo<<a+b;

}