def main1(n,a):
  iary=[[] for _ in range(n)]
  ans=0
  for i in range(n):
    for j in range(n):
      iary[a[i][j]-1].append([i,j])
  for v in range(n):
    ary=iary[v]
    mat=[0]*n
    tmp=0
    for x,y in ary:
      # ロスのない場所
      x-y,x+y
      tmp+=y
      if x-y>0:
        cnt=1
        for z in range(x-y-1,-1,-1):
          mat[z]+=cnt
          cnt+=1
      if x+y+1<n:
        cnt=1
        for z in range(x+y+1,n):
          mat[z]+=cnt
          cnt+=1
    tmp+=min(mat)
    ans+=tmp
    #print(v,":",tmp,mat)
  return ans
if __name__=='__main__':
  n=int(input())
  a=[list(map(int,input().split())) for _ in range(n)]
  ret1=main1(n,a)
  print(ret1)