## https://yukicoder.me/problems/no/2665

from collections import deque

class BinaryIndexTree:
    """
    フェニック木(BinaryIndexTree)の基本的な機能を実装したクラス
    """
    def __init__(self, size):
        self.size = size
        self.array = [0] * (size + 1)
    
    def add(self, x, a):
        index = x
        while index <= self.size:
            self.array[index] += a
            index += index & (-index)
    
    def sum(self, x):
        index = x
        ans = 0
        while index > 0:
            ans += self.array[index]
            index -= index & (-index)
        return ans

    def least_upper_bound(self, value):
        if self.sum(self.size) < value:
            return -1
        elif value <= 0:
            return 0

        m = 1
        while m < self.size:
            m *= 2

        k = 0
        k_sum = 0
        while m > 0:
            k0 = k + m
            if k0 < self.size:
                if k_sum + self.array[k0] < value:
                    k_sum += self.array[k0]
                    k += m
            m //= 2
        if k < self.size:
            return k + 1
        else:
            return -1


def solve(n, P):
    bit = BinaryIndexTree(n)

    queue = deque()
    answer = 0
    for p in P:
        if len(queue) == 0:
            queue.append(p)
            bit.add(p, 1)
        else:
            back = len(queue) - bit.sum(p)
            front = bit.sum(p)

            if front >= back:
                queue.append(p)
                answer += back
            else:
                queue.appendleft(p)
                answer += front
            bit.add(p, 1)

    array = []
    while len(queue) > 0:
        array.append(queue.popleft())    
    return [
        answer,
        " ".join(map(str, array))
    ]


def main():
    T = int(input())
    answers = []
    for _ in range(T):
        n = int(input())
        P = list(map(int, input().split()))
        ans = solve(n, P)
        answers.append(ans)
    
    for ans in answers:
        print(ans[0])
        print(ans[1])


    



if __name__ == "__main__":
    main()