class segtree:
  def __init__(self,n):
    self.size=1
    while self.size<n:
      self.size*=2
    self.dat=[0]*(self.size*2)
  def update(self,x,a):
    x+=self.size
    self.dat[x]=a
    while x>1:
      x//=2
      self.dat[x]=(self.dat[2*x]+self.dat[2*x+1])
  def querry(self,u,v):
    u+=self.size
    v+=self.size
    score=0
    while u<v:
      if u&1:
        score+=self.dat[u]
        u+=1
      if v&1:
        v-=1
        score+=self.dat[v]
      u//=2
      v//=2
    return score
Q=int(input())
from collections import deque
for _ in range(Q):
  S=deque()
  result=[]
  N=int(input())
  Z=segtree(N+1)
  ans=0
  A=list(map(int,input().split()))
  for i in range(N):
    x=A[i]
    p1=Z.querry(0,x)
    p2=Z.querry(x,N+1)
    if p1<=p2:
      S.appendleft(x)
      ans+=p1
    else:
      S.append(x)
      ans+=p2
    Z.update(x,1)
  print(ans)
  while S:
    w=S.popleft()
    result.append(w)
  print(*result)