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 JavaScript (node.js v5.12) (judge verdict: Accepted)

function main(input) {
  const nums = input
    .trim()
    .split(/\s/)
    .map(str => Number(str));

  console.log(
    nums[0] !== 0 && nums[0] === nums[1] && nums[0] === nums[2] ? "Yes" : "No"
  );
}
main(require("fs").readFileSync("/dev/stdin", "utf8"));