#include <stdio.h>
int main()
{
	int m, n, i, j, temp, flag;
	scanf("%d%d", &m, &n);
	if(n > m)
	{
		temp = m;
		m = n;
		n = temp;
	}
	for(i = n;i <= m;i ++ )
	{	flag = 0;
		for(j = 2;j <= i / 2;j ++ )
			{
				if(i%j == 0)

				{
					flag = 1;
					break;
				}
			}
				if(flag == 0 && i >= 2)
					printf("%d ", i);
			
	}
	printf("\n");
	return 0;	
}