Problem: You are given a string s, consisting of brackets of two types: '(', ')', '[' and ']'.

A string is called a regular bracket sequence (RBS) if it's of one of the following types: 

  * empty string; 
  * '(' + RBS + ')'; 
  * '[' + RBS + ']'; 
  * RBS + RBS. 



where plus is a concatenation of two strings.

In one move you can choose a non-empty subsequence of the string s (not necessarily consecutive) that is an RBS, remove it from the string and concatenate the remaining parts without changing the order.

What is the maximum number of moves you can perform?

Input

The first line contains a single integer t (1 ≤ t ≤ 1000) — the number of testcases.

Each of the next t lines contains a non-empty string, consisting only of characters '(', ')', '[' and ']'. The total length of the strings over all testcases doesn't exceed 2 ⋅ 10^5.

Output

For each testcase print a single integer — the maximum number of moves you can perform on a given string s.

Example

Input


5
()
[]()
([)]
)]([
)[(]


Output


1
2
2
0
1

Note

In the first example you can just erase the whole string.

In the second example you can first erase the brackets on positions 1 and 2: "[]()", then "()" is left. After that you can erase it whole. You could erase the whole string from the beginning but you would get one move instead of two.

In the third example you can first erase the brackets on positions 1 and 3: "([)]". They form an RBS "()". Then "[]" is left, so you can erase it whole.

In the fourth example there is no subsequence that is an RBS, so you can't perform a move at all.

In the fifth example you can erase the brackets on positions 2 and 4: ")[(]" and get ")(" as a result. You can erase nothing from it.

Solution (in JAVA):

Solution:

import java.util.*;
import java.lang.*;
import java.io.*;

public class First {

	public static void main(String[] args) throws Exception {

//			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
//			int t = Integer.parseInt(br.readLine());
//			StringBuilder sb = new StringBuilder();
//			while (t-- > 0) {
//				int n = Integer.parseInt(br.readLine());
//				String[] str = (br.readLine()).trim().split(" ");
//				int[] arr = new int[n];
//				for (int i = 0; i < n; i++) {
//					arr[i] = Integer.parseInt(str[i]);
//				}
//			}
//			return;

//		first();
//			sec();
			third();
//			four();
//			fif();
//			six();
	}

	private static void first() throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int t = Integer.parseInt(br.readLine());
		StringBuilder sb = new StringBuilder();
		while (t-- > 0) {
			String[] str = (br.readLine()).trim().split(" ");
			int n = Integer.parseInt(str[0]);
			int m = Integer.parseInt(str[1]);
//			n = Math.abs(n);m = Math.abs(m);
			long ans =0 ;
			if(n==m) {
				ans = 2*n;
			}else {
				ans = 2*Math.max(n, m)-1;
			}
			System.out.println(ans);
		}
		return;

	}

	private static void sec() throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int t = Integer.parseInt(br.readLine());
		StringBuilder sb = new StringBuilder();
		while (t-- > 0) {
			int n = Integer.parseInt(br.readLine());
			String[] str = (br.readLine()).trim().split(" ");
			int[] arr = new int[n];
			for (int i = 0; i < n; i++) {
				arr[i] = Integer.parseInt(str[i]);
			}
		}
		return;
	}

	private static void third() throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int t = Integer.parseInt(br.readLine());
		StringBuilder sb = new StringBuilder();
		while (t-- > 0) {
			String str = br.readLine();
			int n = str.length();
			int ans =0 ;
			int op1 = 0,op2=0;
			for(int i =0;i<n;i++) {
				if(str.charAt(i)=='[') {
					op1+=1;
				}else if (str.charAt(i)=='('){
					op2+=1;
				}
				
				if(str.charAt(i) == ']' && op1>0) {
					op1-=1;
					ans+=1;
				}	
				if(str.charAt(i) == ')' && op2>0) {
					op2-=1;
					ans+=1;
				}
			}
			System.out.println(ans);
		}
		return;
	}

	private static void four() throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int t = Integer.parseInt(br.readLine());
		StringBuilder sb = new StringBuilder();

		while (t-- > 0) {
			int n = Integer.parseInt(br.readLine());
			String[] str = (br.readLine()).trim().split(" ");
			int[] arr = new int[n];
			for (int i = 0; i < n; i++) {
				arr[i] = Integer.parseInt(str[i]);
			}
		}
		return;
	}

	private static void fif() throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int t = Integer.parseInt(br.readLine());
		StringBuilder sb = new StringBuilder();

		while (t-- > 0) {
			int n = Integer.parseInt(br.readLine());
			String[] str = (br.readLine()).trim().split(" ");
			int[] arr = new int[n];
			for (int i = 0; i < n; i++) {
				arr[i] = Integer.parseInt(str[i]);
			}
		}
		return;
	}

	private static void six() throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int t = Integer.parseInt(br.readLine());
		StringBuilder sb = new StringBuilder();

		while (t-- > 0) {
			int n = Integer.parseInt(br.readLine());
			String[] str = (br.readLine()).trim().split(" ");
			int[] arr = new int[n];
			for (int i = 0; i < n; i++) {
				arr[i] = Integer.parseInt(str[i]);
			}
		}
		return;
	}
}