Problem:
Score : 100 points

Problem Statement

You are given three integers A, B and C.

Determine if there exists an equilateral triangle whose sides have lengths A, B and C.

Constraints

All values in input are integers.

1 \leq A,B,C \leq 100

Input

Input is given from Standard Input in the following format:

A B C

Output

If there exists an equilateral triangle whose sides have lengths A, B and C, print Yes; otherwise, print No.

Sample Input 1

2 2 2

Sample Output 1

Yes

There exists an equilateral triangle whose sides have lengths 2, 2 and 2.

Sample Input 2

3 4 5

Sample Output 2

No

There is no equilateral triangle whose sides have lengths 3, 4 and 5.

Solution in Scala (2.11.7) (judge verdict: Accepted)



import java.util.Scanner


object Main {
  def read() = {
    val sc = new Scanner(System.in)
    val a, b, c = sc.nextInt()
    (a,b,c)
  }

  def solve(a: Int, b:Int, c:Int) : String = {
    val isOK :Boolean= a==b && b == c
    if(isOK) "Yes" else "No"
  }

  def main(args: Array[String]): Unit = {
    val (a,b,c) = read()
    println(solve(a,b,c))
  }
}