Problem:
Score : 200 points

Problem Statement

There are some animals in a garden. Each of them is a crane with two legs or a turtle with four legs.

Takahashi says: "there are X animals in total in the garden, and they have Y legs in total." Determine whether there is a combination of numbers of cranes and turtles in which this statement is correct.

Constraints

1 \leq X \leq 100

1 \leq Y \leq 100

All values in input are integers.

Input

Input is given from Standard Input in the following format:

X Y

Output

If there is a combination of numbers of cranes and turtles in which the statement is correct, print Yes; otherwise, print No.

Sample Input 1

3 8

Sample Output 1

Yes

The statement "there are 3 animals in total in the garden, and they have 8 legs in total" is correct if there are two cranes and one turtle. Thus, there is a combination of numbers of cranes and turtles in which the statement is correct.

Sample Input 2

2 100

Sample Output 2

No

There is no combination of numbers of cranes and turtles in which this statement is correct.

Sample Input 3

1 2

Sample Output 3

Yes

We also consider the case in which there are only cranes or only turtles.

Solution in C# (.NET Core 3.1.201) (judge verdict: Wrong Answer)

using System;

namespace Crane
{
    class Program
    {
        static void Main(string[] args)
        {
            int X, Y;

            string inD0 = Console.ReadLine();
            string[] cngD0 = inD0.Split(' ');

            X = int.Parse(cngD0[0]);
            Y = int.Parse(cngD0[1]);
            
            int j = 0;

            for(int i = X; X > 0; i--)
            {
                if ((i * 2 + j * 4) == Y)
                {
                    Console.WriteLine("YES");
                    break;
                }
                else if(i==1){
                    Console.WriteLine("NO");
                    break;
                }
                j++;

            }
        }
    }
}