X, Y, Z = gets.split.map &:to_i
Start, Goal = $<.map{|s|
  a, b = s.split
  [a, b.to_i]
}.sort

# from x to x
def same(from, to, x, y, z)
  a = to - from
  b = from + y + (x - to)
  c = from + z + (x - to)
  [a, b, c].min
end

# from x to y
def diff(from, to, x, y, z)
  a = from + to - 1
  b = (x - from) + (y - to) + 1
  c = from + z + (y - to)
  d = (x - from) + z + to
  [a, b, c, d].min
end

From, To = Start[1], Goal[1]
case [Start[0], Goal[0]]
when [?A, ?A]
  p same(From, To, X, Y, Z)
when [?A, ?B]
  p diff(From, To, X, Y, Z)
when [?A, ?C]
  p diff(From, To, X, Z, Y)
when [?B, ?B]
  p same(From, To, Y, X, Z)
when [?B, ?C]
  p diff(From, To, Y, Z, X)
when [?C, ?C]
  p same(From, To, Z, X, Y)
end