from collections import deque

class Bit:
    def __init__(self, n):
        self.size = n
        self.tree = [0] * (n + 1)

    def sum(self, i):
        assert i != 0
        s = 0
        while i > 0:
            s += self.tree[i]
            i -= i & -i
        return s

    def add(self, i, x):
        while i <= self.size:
            self.tree[i] += x
            i += i & -i


def solve():
    n = int(input())
    plist = list(map(int, input().split()))
    deq = deque()

    bit = Bit(n+10)
    tento = 0
    for i in range(n):
        p = plist[i]
        # print(p)
        if i == 0:
            deq.append(p)
            bit.add(p,1)
            continue
        
        low = bit.sum(p)
        up = i-low

        # print(p, low, up)

        if low > up:
            deq.append(p)
            tento += up
        elif low == up:
            if deq[0] < p:
                deq.append(p)
                tento += up
            else:
                deq.appendleft(p)
                tento += low
        else:
            deq.appendleft(p)
            tento += low
        bit.add(p, 1)

        # print(deq)
    
    print(tento)
    print(*deq)




q = int(input())
while q:
    q -= 1
    solve()