2856: ABC188A- Three-Point Shot

Memory Limit：128 MB Time Limit：1.000 S
Judge Style：Text Compare Creator：
Submit：22 Solved：11

Description

Problem Statement

A basketball game is being played, and the score is now X-Y. Here, it is guaranteed that X≠Y.
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

  • 0≤X≤100
  • 0≤Y≤100
  • X≠Y
  • 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

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