Time limit: 500ms
Memory limit: 256mb

Description:
You are given a string consisting of parentheses () and []. A string of this type is said to be correct:
(a) if it is the empty string
(b) if A and B are correct, AB is correct,
(c) if A is correct, (A) and [A] is correct.
Write a program that takes a string of this type and check their correctness. 
Your program can assume that the maximum string length is 128.

Tips: Try using stack to solve this problem.

-------------------------Copy the following code, complete it and submit-------------------------


/*
I, <Your Full Name>, am submitting the assignment for
an individual project.
I declare that the assignment here submitted is original except for
source material explicitly acknowledged, the piece of work, or a part
of the piece of work has not been submitted for more than one purpose
(i.e. to satisfy the requirements in two different courses) without
declaration. I also acknowledge that I am aware of University policy
and regulations on honesty in academic work, and of the disciplinary
guidelines and procedures applicable to breaches of such policy and
regulations, as contained in the University website
http://www.cuhk.edu.hk/policy/academichonesty/.
It is also understood that assignments without a properly signed
declaration by the student concerned will not be graded by the
teacher(s).
*/

#include <stdio.h>

int judge_string(char a[], int n) {
    // WRITE YOUR CODE HERE
    // CHECK WHETHER THIS STRING IS CORRECT
}

// DO NOT MODIFY THE CODE BELOW
int main() {
    int n, i, result;
    char a[200];

    scanf("%d", &n);
    scanf("%s", a);

    result = judge_string(a, n);
    if(result){
        printf("Yes"); 
    }
    else {
        printf("No");
    }
    return 0;
}

-------------------------------------------End of Code-------------------------------------------

Input:
First line contains a non-negative integer N;
The second line contains a, a string of N characters, a_0, a_1, ..., a_(N-1);
0 <= N < 128

Output:
If the string is correct output Yes, otherwise output No.

Sample Input 1:
8
([()])()

Sample Output 1:
Yes

Sample Input 2:
9
(([()])))

Sample Output 2:
No