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 Python (3.4.3) (judge verdict: Wrong Answer)

import sys

def ep(*params):
    print(*params,file=sys.stderr)

l = ''
r = ''

lc = ''
rc = ''

S = input().rstrip()

if len(S) > 1:
    l = S[0]
    r = S[-1]
    S = S[1:len(S)-1]
else:
    l = S[0]
    S = ''

Q = int(input())
for _ in range(Q):
    ope = list(input().split())
    if ope[0] == '1':
        (l,r) = (r,l)
    else:
        if ope[1] == '1':
            lc += l
            l = ope[2]
        else:
            rc += r
            r = ope[2]
    if r == '':
        tmp = l+lc+S+rc+r
        if len(tmp) == 2:
            l=tmp[0]
            r=tmp[1]
            lc=''
            s=''
            rc=''
    #print(l,lc[::-1],S,rc,r,sep=":",file=sys.stderr)    

print(l,lc[::-1],S,rc,r,sep="")