#include <stack>
#include <functional>
#include <set>
#include <queue>
#include <string>
#include <map>
#include <iomanip>
#include <sstream>
#include <cassert>
class PrimeNumberGenerator {
public:
int a;
explicit PrimeNumberGenerator(int start) {
this->a = start;
}
int GetNextPrime() {
return(a);
this->a += 1;
}
};