#include <vector>
#include <fstream>
#include <cmath>
#include <iostream>
#include <cstdlib>
#include <sstream>
#include <ctime>

using namespace std;

int main()
{
	vector<double> a(4999999);
	double b,c,d;
	int i;

	srand(time(NULL));
	for (i=0; i<4999999; ++i) {
		b=double(rand())/double(RAND_MAX);
		if (b>0.5) {
			c=pow(b,1.546);
		} else {
			c=pow(b,0.434232);
		}
		d=cos(c+i);
		a[i]=atan(d);
	}
}