Problem:
Score : 100 points

Problem Statement

You are given three integers A, B and C.
Determine whether C is not less than A and not greater than B.

Constraints

-100≤A,B,C≤100

A, B and C are all integers.

Input

Input is given from Standard Input in the following format:

A B C

Output

If the condition is satisfied, print Yes; otherwise, print No.

Sample Input 1

1 3 2

Sample Output 1

Yes

C=2 is not less than A=1 and not greater than B=3, and thus the output should be Yes.

Sample Input 2

6 5 4

Sample Output 2

No

C=4 is less than A=6, and thus the output should be No.

Sample Input 3

2 2 2

Sample Output 3

Yes

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

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

class AtCoder
{
    static AtCoder atCoder;
    public static void Main()
    {
        atCoder = new AtCoder();
        atCoder.Run();
    }

    static void staticMethod()
    {
        atCoder.Run();
    }

    void Run()
    {
        var line = System.Console.ReadLine();
        string[] inputs = line.Split();
        int A = int.Parse(inputs[0]);
        int B = int.Parse(inputs[1]);
        int C = int.Parse(inputs[2]);

        if( C>=A&&C<=B)
        {
            System.Console.WriteLine("Yes");
        }
        else
        {
            System.Console.WriteLine("No");
        }
    }
}