#include <iostream>
#include <string>

using namespace std;

int main (int argc, char *argv[])
{

if(argc < 4) //First parameter is name of program
{
    cout << "\nIncorrect syntax. Usage: solve sum difference upperlimit" << endl;
    return 1;
}

int sum = stol(argv[1]); //since c++11
int diff = stol(argv[2]);
int max = stol(argv[3]);

    for(int x=0; x < max; ++x) //Use prefix increment
    {
        for(int y=0; y < max; ++y)
        {
            if( x + y == sum)
            {
                cout << sum << "\n"
                     << x << "\n"
                     << y << "\n"
                     << diff << endl;

                if(abs(y - x) == diff)
                {
                    cout << "\nSolutions are:" << "X=" << x << " " << "Y=" << y << endl;
                    return 0;
                }
            }
        }
    }

    return 0;
}