Throwing cards away

/*  BISMILLAHIR-RAHMANIR-RAHIM
 ____________________________________
|                                    |
|       SHANTO_SUST_SWE-19_029       |
|____________________________________|
*/

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define pb push_back
#define Pi acos(-1)
#define r0 return 0
#define endl "\n"
#define show(x) cout << x << endl
#define take(x) cin >> x
#define debug 1

int main()
{
    int n, i, x;

    while(1){
        cin >> n;
        if (n == 0) r0;

        vector < int > v;

        for(i = 1; i <= n; i++) v.pb(i);

        cout << "Discarded cards:";
        x = 1;

        while(x){
            for(i = 0; i < v.size(); i++){
                cout << " " << v.front();
                if(v.size() > 2) cout << ",";
                v.erase(v.begin());
                v.pb(v.front());
                v.erase(v.begin());
                if(v.size() == 1){
                    cout << endl << "Remaining card: " << v[0] << endl;
                    x = 0;
                    break;
                }
            }
        }
    }


    r0;
}

//ALHAMDULILLAH