prime_function.cpp

#include<iostream>
#include<math.h>
using namespace std;

bool isPrime(int num){
    for (int i = 2; i <= sqrt(num); i++){
        if (num % i == 0){
            return false;
        }
    }
    return true;
}
int main(){
    int a,b;
    cin>>a>>b;
    for (int i = a; i <= b; i++){
        if (isPrime(i)){
            cout<<i<<endl;
        }
    }
    return 0;
}