#include<bits/stdc++.h>
using namespace std;
int main(){
int n,i,g,s,b,q;
	cin>>n;
	for(i=1000;i<=n;i++){
		g=i%10;
		s=i/10%10;
		b=i/100%10;
		q=i/1000;
		if(i%2!=0&&s==q&&g==b){
			cout<<i<<endl;
		}	
	}
	return 0;
}
/**************************************************************
	Problem: 1737
	User: xiaojingxuan
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2072 kb
****************************************************************/