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 Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.Scanner;

public class Main{
    public static boolean isEquilateralTriangle(int a, int b, int c){
	boolean isEqTri = true;

	if(a != b || b != c)
	    isEqTri = false;

	return isEqTri;
    }
	
    public static void main(String[] args){
	Scanner stdin = new Scanner(System.in);

	int side_A = stdin.nextInt();
	int side_B = stdin.nextInt();
	int side_C = stdin.nextInt();

	if(isEquilateralTriangle(side_A, side_B, side_C)){
	    System.out.println("Yes");
	}else{
	    System.out.println("No");
	}
    }
}