#include<iostream> using namespace std; int a1, s1, s2, d; int main() { cin >> s2; for (int i = 1; i <= s2; i++) { d = 0; s1 = i; while (s1) { a1 = s1 % 10; s1 /= 10; d = d * 10 + a1; } if (d == i) { cout << d << endl; } } return 0; }