int main()
{
    int m,i,j,n;
    scanf("%d",&m);
    int a[10001];
    n=m/2;
    for (i=2;i<=m;i++)
    	   a[i]=0;
    for(i=2;i<=n;i++)
    {
     if (a[i]==0)
        for(j=i+i;j<=m;j=j+i)
        	a[j]=1;
    }
    for (i=2;i<=n;i++)
    {
    	if ((a[i]==0)&&(a[m-i]==0))
    		printf("%d %d\n",i,m-i);
    }
	return 0;
}