int sushu(int k)
{int i;
	for(i=2;i<=sqrt(k);i++)
	if(k%i==0) break;
	if(i<=sqrt(k)) return 0;
	else return 1;
}

int main()
{int n,i,m;
	scanf("%d",&n);
	n=(n%2==0)?n:n-1;
	for(m=6;m<=n;m+=2)
	{for(i=3;i<=m-1;i++)
	  if(sushu(i)&&sushu(m-i)) {printf("%d=%d+%d",m,i,m-i);break;}
	  if(m<n)printf("\n");
     }
}