#include<stdlib.h>
#include<iostream>
int main()
{
    std::cout<<system("..\add\debug\add.exe 4 8");
    while(true);
    return 0;
}

#include<stdlib.h>
int main(int argc,char **argv[])
{
    int n=((unsigned)argv[1]);
    int m=((unsigned)argv[2]);
    return(n+m);
}

#include<stdlib.h>
int main(int argc,char *argv[])
{
    int n= atoi(argv[1]);
    int m= atoi(argv[2]);
    return(n+m);
}