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

#define name "TENBAI"
#define fi first
#define se second
#define int 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 mod = 29;

int F(int x)
{
    return x % mod;
}

void solve()
{
    string _;
    cin >> _;
    if (_ == "Alisa")
    {
        string s, S;
        cin >> s;
        S += s[0];
        for (int i = 1; i < s.size(); i++)
            S += ' ', S += s[i];
        int n;
        cin >> n;
        int cr = 0;
        vector<int> res;
        for (int i = 1; i <= n; i++)
        {
            int x;
            cin >> x;
            if (cr < S.size() && ((F(x) == 26 && S[cr] == ' ') || F(x) == S[cr] - 'a'))
            {
                res.push_back(x);
                if (res.size() % 10 == 0)
                    cr++;
            }
        }
        assert(cr == S.size());
        cout << res.size() << endl;
        for (int t : res)
            cout << t << ' ';
    }
    else
    {
        int n;
        cin >> n;
        int pr = -1;
        for (int i = 1; i <= n; i++)
        {
            int x;
            cin >> x;
            if (F(x) != F(pr) && F(x) < 26)
                cout << char(F(x) + 'a');
            pr = F(x);
        }
    }
}

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();
}