@@ -0,0 +1,22 @@
+#include<bits/stdc++.h>
+using namespace std;
+bool Primer(int n){
+ if(n==2)return true;
+ if(n<2||n%2==0)return false;
+ for(int c=3;c*c<=n;c+=2)if(n%c==0)return false;
+ return true;
+}
+void Gold(int n){
+ int p=n/2;
+ if(p%2==0)--p;
+ for(;p>=3;p-=2){
+ if(Primer(p)&&Primer(n-p)){
+ cout<<p<<" "<<n-p<<endl;
+ break;
+ }
+int main(){
+ int n;while(cin>>n)Gold(n);
+ return 0;