#include <iostream>
#include <vector>

using namespace std;

void stergere(vector<int> &v) {
    if (v.back() % 2 == 0) {
        v.pop_back();
        stergere(v);
    } else {

    }
}

int main() {
    vector<int> v(1000);
    for (int i = 0; i < v.size(); ++i) {
        v[i] = i;
    }

}