prime

#include <iostream>

using namespace std;



int main()
{
    int x, y;
    bool isPrime;
    cin >> x >> y;
    if(y < 2) return 0;
    x++;
    if( x < 2)  x = 2;
    for( ; x < y; x++){

        isPrime = true;
        for(int j = 2; j <= x / 2; j++){
            if(x % j == 0){
                isPrime = false;
                break;
            }
        }

         if(isPrime)
                cout << x << ' ';

    }

    return 0;
}