#include <iostream>
using namespace std; 
class primenum
{
    public :
    int n1,n2,n;
    void inputs ()
    {
        cout <<"Enter the range ..... to.....  : ";
        cin >>n1>>n2;
        cout <<n1<<"\t"<<n2<<endl; 
        cout <<"From "<<n1<<" to "<<n2<<" prime numbers are:"<<endl; 
    }
    void display ();
};
void primenum::display ()
{
    for (int i=n1;i<n2;i++)
    {
        n=0;
        for (int j=1;j<=i;j++)
        {
            if (i%j==0)
            {
                ++n; 
            }
        }
        if (n==1||n==2)
        {
            cout <<i<<"\t";
        }
    }
}
int main() {
    primenum p; 
    p. inputs();
    p. display ();
    return 0;
}