#include <iostream>
#include <unistd.h>
#include <sys/wait.h>

using namespace std;

int main(){




    cout << " A single process " << endl;

    int i;

    pid_t pid = fork();

    cout << "two processes my pid is " << getpid() << endl;

    for(i =0; i < 100; ++i) {
       cout << "\t" << pid << " " << i << endl;
    }



    return 0;
}