#include <bits/stdc++.h>
using namespace std;

int main() {
	int i,n,g,b;
	i = 100;
	while(i <= 999){
		g = i % 10;
		b = i / 100;
		if(g == b){
			cout<<i<<endl;
		}
		i = i + 1;
	}
}

/**************************************************************
	Problem: 1701
	User: admin
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2072 kb
****************************************************************/