//输入一个大于6的偶数,这个数一定能写成两个素数的和,比如8=3+5;
#include<iostream>using namespace std; int prime(int x);void gotbaha(int x);void main(){ int a; cin>>a; if((a<6)||(a%2==1)) cout<<"the wrong number"<<endl; else gotbaha(a); }int prime(int x){ int i; for(i=2;i<x;i++) if(x%i==0) return NULL; return x;}void gotbaha(int x){ int p,q,i; for(i=2;i<x;i++) {p=prime(i); q=prime(x-i); if (p+q==x) break;} cout<<x<<"="<<p<<"+"<<q<<endl; }