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 Python (3.4.3) (judge verdict: Accepted)

i = list(map(int, input().split())) #i_1 i_2 1_3を取得し、iに値を入れる

if ((i[1] - i[0]) > 0) :
    if( (i[0] < i[2]) and (i[1] > i[2]) ):
        print('Yes')
    else:
        print('No')
else:
    if( (i[0] > i[2]) and (i[1] < i[2]) ):
        print('Yes')
    else:
        print('No')