* Line 1 : Two space-separated integers: N and L. N<=1000
* Lines 2..N+1: Each line contains a single integer giving the position P of a clump (1 <= P <= 1,000,000).
* Line 1: A single integer: the minimum total staleness Bessie can achieve while eating all the clumps.
4 10
1
9
11
19
INPUT DETAILS:
Four clumps: at 1, 9, 11, and 19. Bessie starts at location 10.
44
OUTPUT DETAILS:
Bessie can follow this route:
* start at position 10 at time 0
* move to position 9, arriving at time 1
* move to position 11, arriving at time 3
* move to position 19, arriving at time 11
* move to position 1, arriving at time 29
giving her a total staleness of 1+3+11+29 = 44. There are other routes
with the same total staleness, but no route with a smaller one.44