import java.util.*;

public class Main {
    static int n = 0;
    public static void main(String[] args) {
            
        int i;
        Scanner cin = new Scanner(System.in);
        
        n = cin.nextInt();
        
        for( i = 10001; i< 999999 ; i++ ){
            if(huiwen(i))
                System.out.println(i);
        }
        }
    
static boolean huiwen(int x){
    
    int i,s,j=0;
    int a[] = new int[8];
    while(x>0)  
    {  
        a[j++]=x%10;  
        x/=10;  
    }  
    for(i=0; i<=j/2; i++)  
    {  
        if(a[i]!=a[j-1-i]) return false;  
    }   
    for(i=0,s=0; i<j; i++)  
    {  
      s+=a[i];  
    }  
    if(s==n) return true;    
    else return false;  
}
}