#include <iostream> using namespace std; int main() { int n; cin >> n; for (int i = 1; i <= n; i++) { int reversed_num = 0; int temp = i; while (temp > 0) { reversed_num = reversed_num * 10 + (temp % 10); temp /= 10; } if (reversed_num == i) { cout << i << endl; } } return 0; }