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: Accepted)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ITP1_2_B
{
    class Program
    {
        static void Main(string[] args)
        {
            //3つの整数a,b.cを読み込み、a<b<cならYes、そうでなければNoを出力する

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

            if (a<b && b<c)
            {
                Console.WriteLine("Yes");
            }

            //if (a < b)
            //{
            //    if (b<c)
            //    {
            //        Console.WriteLine("Yes");
            //    }
            //    else
            //    {
            //        Console.WriteLine("No");
            //    }
            //}
            else
            {
                Console.WriteLine("No");
            }

            Console.ReadKey();
        }
    }
}