#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: yangjunwen
	Language: C++
	Result: Accepted
	Time:4 ms
	Memory:2072 kb
****************************************************************/