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 JavaScript (Node.js 12.16.1) (judge verdict: Wrong Answer)

"use strict";

function main(arg) {
    const input = arg.split("\n")
    const [X,Y] = input[0].split(" ").map(x=>Number(x))
    //console.log(X)
    //console.log(Y)
    
    let craneNum = 2 * X - Y/2
    let turtleNum = X - craneNum
    console.log(`craneNum = ${craneNum}`)
    console.log(`turtleNum = ${turtleNum}`)
    
    if(!Number.isInteger(craneNum) || craneNum < 0 || !Number.isInteger(turtleNum) || turtleNum) {
        console.log("No")
    } else {
        console.log("Yes")
    }

}
main(require("fs").readFileSync("/dev/stdin", "utf8"));