Problem:
Range

Write a program which reads three integers a, b and c, and prints "Yes" if a < b < c, otherwise "No".

Input

Three integers a, b and c separated by a single space are given in a line.

Output

Print "Yes" or "No" in a line.

Constraints

0 ≤ a, b, c ≤ 100

Sample Input 1

1 3 8

Sample Output 1

Yes

Sample Input 2

3 8 1

Sample Output 2

No

Solution in C# (judge verdict: Wrong Answer)

using System;

class sample6{
    static void Main(string[] args){

            string[] str_number = Console.ReadLine().Split(' ');
            int a = int.Parse(str_number[0]);
            int b = int.Parse(str_number[1]);
            int c = int.Parse(str_number[2]);

            if((a <= 0) || (b <= 0) || ( c <= 0 )){
                Console.WriteLine("数値は0以上の値を入力してください。");
                Environment.Exit(0);
            }else if((a >= 100) || (b >= 100) || (c >= 100)){
                Console.WriteLine("数値は100以下の値を入力してください。"); 
                Environment.Exit(0);
            }
            
            if( a < b && b < c){
                Console.WriteLine("Yes");
            }else{ 
                
                 Console.WriteLine("No");
            }
    }
}