#include<iostream>
#include<math.h>
using namespace std;
int main()
{
	int n,num1,num2,k=0,j;
	while(cin>>n)
	{
		if(n==0)
			break;

        for(int i=3;i<n;i++)
		{
			num1=i,num2=n-i;
			for( j=2;j<=(int)sqrt((double)(num1+1));j++)
			{
				if(num1%j==0)
					break;
			}
			if(j==(int)sqrt((double)(num1+1))+1)
			{
                for( k=2;k<=(int)sqrt((double)(num2+1));k++)
				{
					if(num2%k==0)
						break;
				}
			}
			if(k==(int)sqrt((double)(num2+1))+1)
			{
				cout<<n<<" = "<<num1<<" + "<<num2<<endl;
				break;
			}
		}
	}
	return 0;
}