Problem2103--ABC188A- Three-Point Shot (三分球)

2103: ABC188A- Three-Point Shot (三分球)

[Creator : ]
Time Limit : 1.000 sec  Memory Limit : 128 MB

Description

一场篮球比赛正在进行,比分现在是X-Y。这里,保证X 不等于 Y
落后的球队能否以一个成功的三分球扭转局面?
换言之,如果落后的球队得到三分,那么它的得分是否会严格高于另一个球队?  如果可以,打印Yes,否则打印No 

Problem Statement

A basketball game is being played, and the score is now X-Y. Here, it is guaranteed that XY.
Can the team which is behind turn the tables with a successful three-point goal?
In other words, if the team which is behind earns three points, will its score become strictly greater than that of the other team?

Constraints

  • 0X100
  • 0Y100
  • XY
  • X and Y are integers.

Input

Input

Input is given from Standard Input in the following format:

X Y 

Output

Output

If the team which is behind can turn the tables with a successful three-point goal, print Yes; otherwise, print No.

Sample Input Copy

3 5

Sample Output Copy

Yes

Source/Category