04. Car Number

#include <iostream>

using namespace std;

int main() {
    int startNum, finalNum;
    cin >> startNum >> finalNum;

    for (int i = startNum; i <= finalNum; i++) {
        for (int k = startNum; k <= finalNum; k++) {
            for (int j = startNum; j <= finalNum; j++) {
                for (int x = startNum; x <= finalNum; x++) {
                    if ((i % 2 == 0 && x % 2 == 1 || i % 2 == 1 && x % 2 == 0)
                        && i > x && (k + j) % 2 == 0) {
                        cout << i << k << j << x << " ";
                    }
                }
            }
        }
    }
    return 0;
}