#include<bits/stdc++.h>
using namespace std;
bool ss(int j){
    bool f;
    f=true;
    if(j<2) f=false;
    for(int i=2;i<=sqrt(j);i++){
        if(j%i==0){
            f=false;
        }
    }
    return f;
}
int main(){
	int n,a,b;
	cin>>n;
	for(int i=4;i<=n;i+=2){
		for(int j=2;j<=i/2;j++){
			a=j;
			b=i-j;
			if(ss(a)&&ss(b)){
				cout<<i<<"="<<a<<"+"<<b<<endl;
			}
		}
	}
	return 0;
}

/**************************************************************
	Problem: 1135
	User: tangkaixuan
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/