n=int(input())
a=[list(map(int,input().split())) for _ in range(n)]
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 i in range(n):
  ary=iary[i]
  mat=[0]*n
  for x,y in ary:
    # ロスのない場所
    x-y,x+y
    if x-y>0:
      mat[0]+=1
      mat[x-y]-=1
    if x+y+1<n:
      mat[x+y+1]+=1
  min_idx=0
  min_v=mat[0]
  for i in range(n-1):
    mat[i+1]+=mat[i]
    if mat[i+1]<min_v:
      min_v=mat[i+1]
      min_idx=i+1
  tmp=0
  for x,y in ary:
    x=abs(x-min_idx)
    tmp+=y+max(0,x-y)
  ans+=tmp
print(ans)