Better threading

#include <iostream>
#include <thread>

using namespace std;

void count (int in = 1) {
        for (int a = 0, b = 0; a < 99999999; ++a) b = a+a*a+a*a-(a+a*a);
    cout << in << endl;
}

void one () {
    for (int a = 0, b = 0; a < 9999999; ++a) b = a+a*a+a*a-(a+a*a); //I know this is probably frowned upon
    cout << "\t\tOne" << endl;
}

int main() {
    thread t1;
    thread t2;

    for (int a = 0; a < 100; ++a) {
        t1 = thread (count, a);
        t2 = thread (one);
        t1.join (); t2.join ();
    }

    cout << "\nDone\n";
}