int main()
{
	int n,i,j,p;
	scanf("%d",&n);
	char a[10001]={0};
	i=2;
	while(i<n)
	{
		for(j=i+1;j<n;j=j+1)
			if (j%i==0)  a[j]=1;
		i++;
		for(;i<n;i=i+1)
			if (a[i]==0)  break;
	}
	p=0;
	for(i=3;i<=(n/2);i=i+1)
		if ((a[i]==0)&&(a[n-i]==0))
			{
			if (p) printf("\n");
			p=p+1;
			printf("%d %d",i,n-i);
			}
	return 0;
}
