#include <iostream>
using namespace std;

class ar {
    int n;
    int *arr;

public:
    ar() : n(0), arr(0) {};
    ar(int k) {
        n = k;
        arr = new int[n] {0};
    }
    int& operator[] (int i) {
        return arr[i];
    }
    void newRas(int k) {

        int* b = new int [k];
        if (k < n) {
            n = k;
        }
        for (int i = 0; i < n; i++) {
            b[i] = arr[i];
        }
        for (int i = n; i < k; i++) {
            b[i] = 0;
        }
        n = k;
        delete[] (arr);
        arr = new int[n];
        for (int i = 0; i < n; i++) {
            arr[i] = b[i];
        }
        delete[] (b);
    }
    int rasm() {
        return n;
    }
    void write() {
        for (int i = 0; i < n; i++) {
            cout << arr[i] << ' ';
        }
    }
    bool emp() {
        bool cle = 0;
        for (int i = 0; i < n && !cle; i++) {
            if (arr[i] != 0) {
                cle = 1;
            }
        }
        return cle;
    }
    ~ar(){
        delete[](arr);
    }

};
int main()
{
    int k;
    cin >> k;
    ar t(k);
    for (int i = 0; i < k; i++) {
        t[i] = i + 1;
    }
    t.write();
    cout<<'\n'<<t.rasm()<<'\n';
    int new_r;
    cin >> new_r;
    t.newRas(new_r);
    t.write();
    cout << '\n';
    cin >> new_r;
    t.newRas(new_r);
    t.write();
}