#include <iostream>
#include <climits>

using namespace std;

int main()
{
	unsigned long long int sum = 0;
	bool is_prime;
	for (int i = 0; i < 2000000; ++i)
	{
		is_prime = true;
		if (i % 50000 == 0)
			cout << (int)(i/2000000.0*100) << "% " << sum/ULLONG_MAX*100 << "%" << endl;
		for (int j = 2; j < i; ++j)
			if (i % j == 0)
				is_prime = false;
		if (is_prime)
			sum += i;
	}
	return 0;
}