Problem:
Score : 100 points

Problem Statement

There are three houses on a number line: House 1, 2 and 3, with coordinates A, B and C, respectively.
Print Yes if we pass the coordinate of House 3 on the straight way from House 1 to House 2 without making a detour, and print No otherwise.

Constraints

0\leq A,B,C\leq 100

A, B and C are distinct integers.

Input

Input is given from Standard Input in the following format:

A B C

Output

Print Yes if we pass the coordinate of House 3 on the straight way from House 1 to House 2 without making a detour, and print No otherwise.

Sample Input 1

3 8 5

Sample Output 1

Yes

We pass the coordinate 5 on the straight way from the house at coordinate 3 to the house at coordinate 8.

Sample Input 2

7 3 1

Sample Output 2

No

Sample Input 3

10 2 4

Sample Output 3

Yes

Sample Input 4

31 41 59

Sample Output 4

No

Solution in Ruby (2.3.3) (judge verdict: Runtime Error)

n = gets.to_i
s = gets.strip
chunked = s.sub(/^\.*/, "").reverse.sub(/^#*/, "").reverse.chars.chunk(&:itself).map{|c, x| [c, x.size] }
ret = chunked.size.times.map do |i|
  head, tail = chunked[0..i], chunked[i+1..-1]
  count = head.map{|c, x| c == "#" ? x : 0 } + tail.map{|c, x| c == "." ? x : 0 }
  count.inject(&:+)
end.min
puts ret