Problem:
Score : 400 points

Problem Statement

Takahashi has a string S consisting of lowercase English letters.

Starting with this string, he will produce a new one in the procedure given as follows.

The procedure consists of Q operations. In Operation i (1 \leq i \leq Q), an integer T_i is provided, which means the following:

If T_i = 1: reverse the string S.

If T_i = 2: An integer F_i and a lowercase English letter C_i are additionally provided.

If F_i = 1 : Add C_i to the beginning of the string S.

If F_i = 2 : Add C_i to the end of the string S.

Help Takahashi by finding the final string that results from the procedure.

Constraints

1 \leq |S| \leq 10^5

S consists of lowercase English letters.

1 \leq Q \leq 2 \times 10^5

T_i = 1 or 2.

F_i = 1 or 2, if provided.

C_i is a lowercase English letter, if provided.

Input

Input is given from Standard Input in the following format:

S
Q
Query_1
:
Query_Q

In the 3-rd through the (Q+2)-th lines, Query_i is one of the following:

1

which means T_i = 1, and:

2 F_i C_i

which means T_i = 2.

Output

Print the resulting string.

Sample Input 1

a
4
2 1 p
1
2 2 c
1

Sample Output 1

cpa

There will be Q = 4 operations. Initially, S is a.

Operation 1: Add p at the beginning of S. S becomes pa.

Operation 2: Reverse S. S becomes ap.

Operation 3: Add c at the end of S. S becomes apc.

Operation 4: Reverse S. S becomes cpa.

Thus, the resulting string is cpa.

Sample Input 2

a
6
2 2 a
2 1 b
1
2 2 c
1
1

Sample Output 2

aabc

There will be Q = 6 operations. Initially, S is a.

Operation 1: S becomes aa.

Operation 2: S becomes baa.

Operation 3: S becomes aab.

Operation 4: S becomes aabc.

Operation 5: S becomes cbaa.

Operation 6: S becomes aabc.

Thus, the resulting string is aabc.

Sample Input 3

y
1
2 1 x

Sample Output 3

xy

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Linq;
using System.Collections.Generic;
using System.IO;
using static System.Console;


namespace atcorder2
{
    class Program
    {
        public static long Read()
        {

            return long.Parse(Console.ReadLine());
        }

        public static long[] Reads()
        {

            return Console.ReadLine().Split().Select(long.Parse).ToArray();
        }

       
        public static long C(long n,long k)
        {
            long bunsi = 1;
            
            for (long i = 1; i <= k; i++)
            {
                bunsi *= n--;
                bunsi /= i;
            }
            
            return bunsi ;
        }

        



        static void Main(string[] args)
        {
            var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
            Console.SetOut(sw);


            var s = ReadLine().ToCharArray();
            var ans = new char[1000000];
            for (int i = 500000; i < 500000+s.Length; i++)
            {
                ans[i] = s[i - 500000];
            }
            var q = Read();
            long count = 0;
            var left = 499999;
            var right = 500000 + s.Length;
            for (int i = 0; i < q; i++)
            {
                var input = ReadLine().Split();
                var x = long.Parse(input[0]);
                
                if (x == 1) count++;
                else
                {
                    var f = long.Parse(input[1]);
                    var c = input[2][0];
                    if (count % 2 == 0)
                    {
                        if (f == 1) ans[left--] = c;
                        else ans[right++] = c;
                    }
                    else
                    {
                        if(f == 2) ans[left--] = c;
                        else ans[right++] = c;
                    }
                }
            }
            if (count % 2 == 0)
            {
                for (int i = left+1; i < right; i++)
                {
                    Write(ans[i]);
                }
                WriteLine();
            }
            else
            {
                for (int i =right-1; i >left; i--)
                {
                    Write(ans[i]);
                }
                WriteLine();
            }



            Console.Out.Flush();
        }
    }
}