from __future__ import print_function
try: input = raw_input
except: pass

m = []
for i in range(3):
  m.append([ int(x) for x in input().strip().split(' ') ])

def make_square(a,b,c):
  return [[c-b,c+a+b,c-a],[c-a+b,c,c+a-b],[c+a,c-a-b,c+b]]

def rotate_square(s):
  tmp = s[0][0]
  s[0][0] = s[2][0]
  s[2][0] = s[2][2]
  s[2][2] = s[0][2]
  s[0][2] = tmp
  tmp = s[1][0]
  s[1][0] = s[2][1]
  s[2][1] = s[1][2]
  s[1][2] = s[0][1]
  s[0][1] = tmp
  return s

def flip_horizontally(s):
  for i in range(3):
    (s[i][0],s[i][2]) = (s[i][2],s[i][0])
  return s

def flip_vertically(s):
  for i in range(3):
    (s[0][i],s[2][i]) = (s[2][i],s[0][i])
  return s

def print_square(s):
  for r in s: print(' '.join([str(x) for x in r]))

def square_dist(s,t):
  return sum([ abs(s[i][j] - t[i][j]) for i in range(3) for j in range(3) ])

s = make_square(1,3,5)

mindist = sum([ sum(r) for r in s ]) + 45
for i in range(4):
  mindist = min(mindist, square_dist(s,m))
  flip_horizontally(s)
  mindist = min(mindist, square_dist(s,m))
  flip_vertically(s)
  mindist = min(mindist, square_dist(s,m))
  flip_horizontally(s)
  mindist = min(mindist, square_dist(s,m))
  flip_vertically(s)
  rotate_square(s)

print(mindist)