BAEKJOON_1406

import java.io.*;
import java.util.*;



public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br =new BufferedReader(new InputStreamReader(System.in));

        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));

        StringBuilder sb = new StringBuilder(br.readLine());    //test할 문자열
        int cmd = Integer.parseInt(br.readLine());              //몇개의 명령어를 쓸거냐

        Stack<Character> s1 = new Stack<>();
        Stack<Character> s2 = new Stack<>();

        for(int i=0; i<sb.length(); i++){
            s1.push(sb.charAt(i));
        }

        char c;
        for(int i=0; i<cmd; i++){
            String str = br.readLine();           

            switch(str.charAt(0)){
                case 'L':
                    if(s1.size()==0)break;
                    c=s1.peek();
                    s1.pop();
                    s2.push(c);
                    break;
                case 'B':
                    if(s1.size()==0)break;
                    s1.pop();
                    break;
                case 'D':
                    if(s2.size()==0)break;
                    c=s2.peek();
                    s2.pop();
                    s1.push(c);
                    break;
                case 'P':
                    c= str.charAt(2);
                    s1.push(c);
                    break;
            }
        }

        while(!s1.isEmpty()){
            s2.push(s1.peek());
            s1.pop();
        }
        StringBuilder sb2 =new StringBuilder();
        while(!s2.isEmpty()){
            sb2.append(s2.peek());

            s2.pop();
        }

        System.out.println(sb2.toString());
    }
}