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 PHP7 (7.0.15) (judge verdict: Accepted)

<?php

$in = file_get_contents('php://stdin');

$inarr = explode("\n", $in);

$s = array_splice($inarr, 0, 1)[0];
$q = intval(array_splice($inarr, 0, 1)[0]);

$queries = $inarr;
$rev = false;

$left = "";
$right = "";
foreach ($queries as $query) {
  $t = explode(" ", $query);
  if ($t[0] == 1) {
    $rev = !$rev;
  } else {
    $f = $t[1];
    $c = $t[2];
    if ($f == 1) {
      if (!$rev) {
        $left = $c . $left;
      } else {
        $right = $right . $c;
      }
    } else {
      if (!$rev) {
        $right = $right . $c;
      } else {
        $left = $c . $left;
      }
    }
  }
}

if ($rev) {
  $s = strrev($right) . strrev($s) . strrev($left);
} else {
  $s = $left . $s . $right;
}
echo $s . PHP_EOL;