apps_315


Submit solution

Points: 3
Time limit: 30.0s
Memory limit: 250M

Problem type
Allowed languages
Python

Recently a dog was bought for Polycarp. The dog's name is Cormen. Now Polycarp has a lot of troubles. For example, Cormen likes going for a walk.

Empirically Polycarp learned that the dog needs at least k walks for any two consecutive days in order to feel good. For example, if k = 5 and yesterday Polycarp went for a walk with Cormen 2 times, today he has to go for a walk at least 3 times.

Polycarp analysed all his affairs over the next n days and made a sequence of n integers a_1, a_2, ..., a_{n}, where a_{i} is the number of times Polycarp will walk with the dog on the i-th day while doing all his affairs (for example, he has to go to a shop, throw out the trash, etc.).

Help Polycarp determine the minimum number of walks he needs to do additionaly in the next n days so that Cormen will feel good during all the n days. You can assume that on the day before the first day and on the day after the n-th day Polycarp will go for a walk with Cormen exactly k times.

Write a program that will find the minumum number of additional walks and the appropriate schedule — the sequence of integers b_1, b_2, ..., b_{n} (b_{i} ≥ a_{i}), where b_{i} means the total number of walks with the dog on the i-th day.

-----Input-----

The first line contains two integers n and k (1 ≤ n, k ≤ 500) — the number of days and the minimum number of walks with Cormen for any two consecutive days.

The second line contains integers a_1, a_2, ..., a_{n} (0 ≤ a_{i} ≤ 500) — the number of walks with Cormen on the i-th day which Polycarp has already planned.

-----Output-----

In the first line print the smallest number of additional walks that Polycarp should do during the next n days so that Cormen will feel good during all days.

In the second line print n integers b_1, b_2, ..., b_{n}, where b_{i} — the total number of walks on the i-th day according to the found solutions (a_{i} ≤ b_{i} for all i from 1 to n). If there are multiple solutions, print any of them.

-----Examples-----

Input 3 5 2 0 1

Output 4 2 3 2

Input 3 1 0 0 0

Output 1 0 1 0

Input 4 6 2 4 3 5

Output 0 2 4 3 5


Comments

There are no comments at the moment.