class PrimeNumberGenerator {
public:
int a;
explicit PrimeNumberGenerator(int start) {
a = start;
}
int GetNextPrime() {
int s = 1;
while (s != 2) {
for (int i = 2; i < a; i++) {
if (a % i == 0) {
s = 0;
}
}
if (s == 0) {
a += 1;
s = 1;
} else {
s = 2;
}
}
a += 1;
return(a - 1);
}
};