#include <bits/stdc++.h> 
using namespace std;
int main(){
	int z=99,i=10,a,b;
	while(i<=z){
		a=i/10;
		b=i%10;
		if(a>b&&(a+b)%2==0){
			cout<<i<<endl;
		}
		i++;
		}
}
/**************************************************************
	Problem: 1711
	User: sucongyi
	Language: C++
	Result: Runtime Error
****************************************************************/