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#include <iostream>
using namespace std;
int main() {
    int a, b, temp, reverse;
    cin >> a;
    cin >> b;
    for (int i = a; i <= b; i++) {
        temp = i;
        reverse = 0;
        while (temp > 0) {
            reverse = reverse * 10 + temp % 10;
            temp /= 10;
        }
        if (i == reverse)
            cout << i << "\t";

    }
    return 0;
}