Say we have a television set-top box (DVR) and we want to search for a show with an on-screen keyboard, e.g.:

 [A]B C D E

  F G H I J   

  K L M N O  

  P Q R S T   

  U V W X Y

  Z

  width=5

[A]B C D E F G

H I J K L M N

O P Q R S T U

V W X Y Z

width=7

We want a function which takes an on-screen keyboard width and a show title, and returns a string of remote-control button presses (U/D/L/R/* (for Up, Down, Left, Right, and Select)):

  C++: string dvr_remote(int width, string title);  Java: public String dvr_remote(int width, String title); Python: def dvr_remote(width, title):

 For example, dvr_remote(5, "ER") could return:    "RRRRDDDLL" or "RRRRLLDDD"

 - Cursor always starts on [A]  - 1 <= width <= 26  - title is all upper-case alpha  - should return any valid in-bounds path (no wrapping)