#include<bits/stdc++.h>
using namespace std;
int main(){
    int i,a,b;
    for(i=10;i<=99;i++){
        a=i%10;
        b=i/10%10;
        if((a+b)+a*b==i){
            cout<<i<<endl;
        }
    } 
}
/**************************************************************
	Problem: 1722
	User: wengsihan
	Language: C++
	Result: Accepted
	Time:27 ms
	Memory:2072 kb
****************************************************************/