180302_9506_약수들의 합

	//https://www.acmicpc.net/problem/9506 #include <iostream>
	#include <cstring>
	using namespace std;
	void process(int n){
	int ans=1;
	int tmp[5000];
	memset(tmp, 0, sizeof(int)*5000);
	tmp[0]=1;
	int index=1;
	for(int i=2; i<=n/2; i++){
	if(n%i==0) {
	ans+=i;
	tmp[index++]=i;
	}
	}
	if(n==ans){
	cout << n << " = ";
	for(int i=0; i<index; i++){
	cout << tmp[i]<<" ";
	if(i!=index-1) cout <<"+ ";
	}
	cout << endl;
	}
	else cout <<n <<" is NOT perfect." <<endl;
	}
	int main(){
	while(1){
	int n;
	cin >> n;
	if(n==-1) break;
	process(n);
	}
	}