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import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.util.Stack;

public class Q1406_F2 {

public static void main(String[] args) {

Stack<String> stack = new Stack<>();

StringBuilder output = new StringBuilder();

try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {

String[] inputStr = br.readLine().split("");

int inputStrLen = inputStr.length;

int cursor = inputStrLen;

for (int i = 0; i < inputStrLen; i++) {

stack.push(inputStr[i]);

}

int count = Integer.parseInt(br.readLine());

synchronized (java.lang.Object.class) {

while (count-- > 0) {

String[] func = br.readLine().split(" ");

if (func[0].equals("L")) {

if(cursor == 0) {

continue;

}

cursor--;

} else if (func[0].equals("D")) {

if(cursor == stack.size()) {

continue;

}

cursor++;

} else if (func[0].equals("B")) {

if(cursor < 1) {

continue;

}

stack.remove(cursor-1);

cursor--;

} else {

if(cursor < 1) {

stack.add(0, func[1]);

cursor++;

continue;

}

stack.add(cursor, func[1]);

cursor++;

}

}

}

for (String str : stack) {

output.append(str);

}

System.out.println(output);

} catch (Exception e) {

e.printStackTrace();

}

}

}