#include <stdio.h>
#include <stdlib.h>

int main()
{
    int a,b,temp;
    scanf("%d", &a);
    scanf("%d", &b);
    temp=a;
    while(temp<=b)
    {
        int brojac=0;
        for(int temp2=1;temp2<=temp;temp2++){
            if(temp%temp2==0)
            {
                brojac++;
                //printf("Brojot e deliv..%d\n",brojac);

            }
        }
        if(brojac==4)
        {

            printf("%d\n",temp);
        }

        temp++;

    }
    return 0;
}