#include <iostream>
using namespace std;
int main() {
	int i,a,b;
	for(i=10;i<=99;i++){
		a=i/10;
		b=i%10;
		if(a+b+a*b==i){
			cout<<i<<endl;
		}
	}
}
/**************************************************************
	Problem: 1722
	User: panyuchen
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2072 kb
****************************************************************/