# include <stdio.h>
int main()
{
int num;
int i;
int pr;
int aor;
for (aor = 1; aor <= 1000; aor++)
{
	for (i = 1; i <= aor; i++)
	{
		pr = 0;
		if (aor % i == 0)
		{
			pr++;
		}
	}
	if (pr == 2)
	{
		printf("%d\n", aor);
	}

}
return(0);
}