#include <bits/stdc++.h>
using namespace std;

#define name "TENBAI"
#define fi first
#define se second
#define int unsigned long long
#define endl '\n'
#define setmin(x, y) x = min((x), (y))
#define setmax(x, y) x = max((x), (y))
#define sqr(x) ((x) * (x))

mt19937 hdp(chrono::high_resolution_clock::now().time_since_epoch().count());
int rand(int l, int r){return l + ((hdp() % (r - l + 1)) + r - l + 1) % (r - l + 1);}

const int NM = 2e3 + 5;


void solve()
{
    string s;
    cin >> s;
    if (s == "Alice")
    {
        int n, t = 0;
        cin >> n;
        for (int i = 1; i <= n; i++)
        {
            int x;
            cin >> x;
            t |= (1 << x);
        }
        cout << t;
    }
    else
    {
        int t;
        cin >> t;
        cout << __builtin_popcount(t) << endl;
        while (t)
        {
            cout << __lg(t & -t) << ' ';
            t ^= (t & -t);
        }
    }
}

signed main()
{
    if (fopen("in.txt", "r")) 
    {
        freopen("in.txt", "r", stdin);
        freopen("out.txt", "w", stdout);
    }
    else if (fopen(name".inp", "r"))
    {
        freopen(name".inp", "r", stdin);
        freopen(name".out", "w", stdout);
    }
    ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
    int tc = 1; 
    // cin >> tc;
    while (tc--)
        solve();
}