int main()
{   
    int b,j,i;
	int a[10000];
	scanf("%d",&b);
	
	i=1;
	while(i<=9999)
	{j=2;
		while(j<=(int)(i/2)+1)
	   {
	   	if ((i%j)==0)
		{
		a[i]=0;break;
	    }
		else
		a[i]=i;
		j=j+1;
		}
		i=i+1;
	}
	i=1;
	while(i<=4999)
	{
	j=i;
	while(j<=9999)
	{
		if (b==(a[i]+a[j]))
		printf("%d %d\n",a[i],a[j]);
		j=j+1;
	}
	i=i+1;
	}
	
} 