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 Ruby (2.3.3) (judge verdict: Accepted)

inputs = (gets).split(" ")

s = ""
judge = true
inputs.each do |inp|
    if (s == "" || s == inp) then
        s = inp
    else
        judge = false
        break
    end
end

if judge then
    puts "Yes"
else
    puts "No"
end