#include <stdio.h>
int main()
{
	int a, b, i, j, c, k ;

	printf("enter range\n");

	scanf("%d %d", &a, &b);

	if(a > b)
	{
		k = a;
		a = b;
		b = k;
	}

	if(a <= 1)
	{
		a = 2;
	}

	for(i = a;i <= b; i++)
	{
		c = 0;
		for(j = 2; j < i; j++)
		{
			if(i % j == 0)
			{
				c++;
			}
		}
		if(c == 0)
		{
			printf("%d ", i);
		}	
	}

	printf("\n");

	return 0;
}