#include<bits/stdc++.h>
using namespace std;
int main(){
	for (int n=10;n<100;n++){
            int s=n/10%10;
            int g=n%10;
            if(s>g){
            	if((s+g)%2==0){
            		cout<<n<<endl;
            	}
                
            }
        }
}

/**************************************************************
	Problem: 1711
	User: xiaojingxuan
	Language: C++
	Result: Runtime Error
****************************************************************/