## Problem Difficulties solution codechef

Table of Contents

You have prepared four problems. The difficulty levels of the problems are A1,A2,A3,A4A1,A2,A3,A4 respectively. A problem set comprises at least two problems and no two problems in a problem set should have the same difficulty level. Output the maximum number of problem sets you can create using the four problems.

### Input Format

- The first line of the input contains a single integer TT denoting the number of test cases. The description of TT test cases follows.
- The first and only line of each test case contains four space-separated integers A1A1, A2A2, A3A3, A4A4, difficulty levels of the four problems.

### Output Format

For each test case, output in a single line the maximum number of problem sets you can create using the four problems.

### Constraints

- 1≤T≤10001≤T≤1000
- 1≤A1,A2,A3,A4≤101≤A1,A2,A3,A4≤10

### Subtasks

**Subtask #1 (100 points):** Original constraints

### Sample Input 1

```
3
1 4 3 2
4 5 5 5
2 2 2 2
```

### Sample Output 1

```
2
1
0
```

### Explanation

**Test case 11:** You can prepare the first problem set using the first two problems and the second problem set using the next two problems. So the problem sets will be [1,4][1,4] and [3,2][3,2].

**Test case 22:** You can prepare one problem set using one problem having a difficulty level of 44 and the other having a difficulty level of 55. There is no way to prepare more than one problem set.

**Test case 33:** There is no way to prepare a problem set.