#include<bits/stdc++.h>
using namespace std;
int main(){
	for(int i=100;i<=999;i++){
		int g=i%100;
		int s=i/10%10;
		int b=i/100;
		if(g==b&&s>g||s<g){
			cout<<i<<endl;
		}
	}
}

/**************************************************************
	Problem: 1701
	User: xiaojingxuan
	Language: C++
	Result: Output Limit Exceed
****************************************************************/