#pragma once

#include <cmath>

using namespace std;

class PrimeNumberGenerator {
 public:
  explicit PrimeNumberGenerator(int start)
  	{
    	if(start > 1)
    		this->number = start;
    	else this->number = 2;
	}

  int GetNextPrime() {
  	bool simple = true;
    while (simple) {
    	for (int i = 2; i <= sqrt(this->number); i++)
      		if (this->number % i == 0) {
        		simple = true;
        		break;
    		}
      	this->number++;
    }
    int res = this->number;
    this->number++;
    return res;
  }
 private:
  int number;
};