human
Chef Monocarp has just put n dishes into an oven. He knows that the i-th dish has its optimal cooking time equal to t_i minutes.

At any positive integer minute T Monocarp can put no more than one dish out of the oven. If the i-th dish is put out at some minute T, then its unpleasant value is |T - t_i| — the absolute difference between T and t_i. Once the dish is out of the oven, it can't go back in.

Monocarp should put all the dishes out of the oven. What is the minimum total unpleasant value Monocarp can obtain?

Input

The first line contains a single integer q (1 ≤ q ≤ 200) — the number of testcases.

Then q testcases follow.

The first line of the testcase contains a single integer n (1 ≤ n ≤ 200) — the number of dishes in the oven.

The second line of the testcase contains n integers t_1, t_2, ..., t_n (1 ≤ t_i ≤ n) — the optimal cooking time for each dish.

The sum of n over all q testcases doesn't exceed 200.

Output

Print a single integer for each testcase — the minimum total unpleasant value Monocarp can obtain when he puts out all the dishes out of the oven. Remember that Monocarp can only put the dishes out at positive integer minutes and no more than one dish at any minute.

Example

Input

6
6
4 2 4 4 5 2
7
7 7 7 7 7 7 7
1
1
5
5 1 2 4 3
4
1 4 4 4
21
21 8 1 4 1 5 21 1 8 21 11 21 11 3 12 8 19 15 9 11 13

Output

4
12
0
0
2
21

Note

In the first example Monocarp can put out the dishes at minutes 3, 1, 5, 4, 6, 2. That way the total unpleasant value will be |4 - 3| + |2 - 1| + |4 - 5| + |4 - 4| + |6 - 5| + |2 - 2| = 4.

In the second example Monocarp can put out the dishes at minutes 4, 5, 6, 7, 8, 9, 10.

In the third example Monocarp can put out the dish at minute 1.

In the fourth example Monocarp can put out the dishes at minutes 5, 1, 2, 4, 3.

In the fifth example Monocarp can put out the dishes at minutes 1, 3, 4, 5.
impor
=====
Write me a Python code to print a single integer for each testcase — the minimum total unpleasant value Monocarp can obtain when he puts out all the dishes out of the oven?
assistant
#Here is Python code to print a single integer for each testcase — the minimum total unpleasant value Monocarp can obtain when he puts out all the dishes out of the oven.
t sys as _sys

def main():
    q = int(input())
    for i_q in range(q):
        
        n, = _read_ints()
        field = [0] * n + [0] * n
        for t in _read_ints():
            field[t-1] += 1
        
        zeros_indices = []
        wrong_indices = []
        for i, x in enumerate(field):
            if x == 0:
                zeros_indices.append(i)
            while field[i] > 1:
                wrong_indices.append(i)
                field[i] -= 1

        cache = dict()
        
        def f(i_i_first_zero, i_i_first_wrong):
            key = (i_i_first_zero, i_i_first_wrong)
            if key in cache:
                return cache[key]
            if i_i_first_wrong == len(wrong_indices):
                return 0
            if i_i_first_zero == len(zeros_indices):
                return float("inf")
            
            i_first_wrong = wrong_indices[i_i_first_wrong]
            
            result = float("inf")
            
            is_first_iter = True
            while is_first_iter or zeros_indices[i_i_first_zero-1] < i_first_wrong:
                result = min(
                    result,
                    f(i_i_first_zero + 1, i_i_first_wrong + 1)
                        + abs(i_first_wrong - zeros_indices[i_i_first_zero]),
                )
                i_i_first_zero += 1
                is_first_iter = False
            
            cache[key] = result
            return result
        
        result = f(0, 0)
        print(result)

def _read_line():
    result = _sys.stdin.readline()
    assert result[-1] == "\n"
    return result[:-1]

def _read_ints():
    return map(int, _read_line().split())

if __name__ == '__main__':
    main()