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;

class Program {
    static void Main() {
        string[] stdin = Console.ReadLine().Split();
        int[] a = new int[3];
        for(int i = 0; i < 3; i++) a[i] = int.Parse(stdin[i]);
        bool flag = true;
        for(int i = 0; i < 2; i++) flag &= a[i] < a[i + 1];
        Console.WriteLine(flag? "Yes" : "No");
    }
}