#include 


int main (int argc, const char * argv[]) {
    
    int a, b;
    scanf("%d%d", &a, &b);
    
    for(int i = a; i <= b; i++) {
        int prevrten = 0;
        
        for(int x = i; x > 0; x /= 10) {
            int cifra = x % 10;
            prevrten = (prevrten * 10) + cifra;
        }
        int kolku_deliteli = 0;
        for(int j = 1; j <= prevrten; j++) {
            if(prevrten % j == 0) {
                kolku_deliteli++;
            }
        }
        if(kolku_deliteli == 2) {
            printf("%d ", i);
        }
    }
    return 0;
}