#exec({'RUBY_THREAD_VM_STACK_SIZE'=>'100000000'},'/usr/bin/ruby', $0) if !ENV['RUBY_THREAD_VM_STACK_SIZE']

require 'prime'

def inpf() a=gets.chomp.split(" ").map(&:to_f)end

def inps() a=gets.chomp.split(" ")end

def copy(a) Marshal.load(Marshal.dump(a)) end

def kaijo(n,r = 10**9+7)(n < 2)? 1 : (2..n).inject{|memo,u|memo=(memo*u)%r} end

def na(n,d=0) Array.new(n,d)end

def na2(n,m,d=0) Array.new(n){Array.new(m,d)}end

def na3(n,m,l,d=0) Array.new(n){Array.new(m){Array.new(l,d)}}end

def inp() a=gets.chomp.split(" ").map(&:to_i)end

def r_up(a, b) (a+b-1)/b end

def sum(a) a.inject(:+) end

def big(a,b) return (a>b)? a:b end

def small(a,b) return (a<b)? a:b end

t1,t2 = inp
a = inp
b = inp
if(a[0] > b[0])
  a,b = b,a
end
if((a[0]-b[0])*(a[1]-b[1])>=0)
  p fsdiopasdf[55656]
  exit
end
kyoa = a[0] * t1 + a[1] * t2
kyob = b[0] * t1 + b[1] * t2
if(kyoa == kyob )
  p fsdiopasdf[55656]
  exit
end
sa = kyoa - kyob
if(kyoa > kyob)
  sa1 = -a[0]*t1+b[0]*t1
  p sa1/sa*2 + 1
else
  p 0
end
