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

int qb[20][20];

int main(){
    string type;
    cin >> type;
    if(type == "Alisa"){
        string str;
        cin >> str;

        vector<int> vec;
        int n;
        cin >> n;
        int ptr = 0, cnt = 0;
        while(n--){
            int x;
            cin >> x;
            if(cnt == 15 + (ptr && str[ptr] == str[ptr-1] ? 20 : 0)){
                ptr++;
                cnt = 0;
            }
            if(ptr == str.size())break;
            if(x%26 == str[ptr] - 'a'){
                vec.push_back(x);
                cnt++;
            }
        }
        cout << vec.size() << "\n";
        for(auto v: vec)cout << v << " ";
    }
    else{
        char prv = 'z' + 1;
        int cnt = 0;
        string ans;
        int n;
        cin >> n;
        while(n--){
            int x;
            cin >> x;
            if(x%26 == prv - 'a')cnt++;
            else{
                for(int i = 0; i < min(2, (cnt+15)/16); i++)cout << prv;
                prv = 'a' + (x%26);
                cnt = 1;
            }
        }
        for(int i = 0; i < min(2, (cnt+15)/16); i++)cout << prv;

    }

}