CF732B.Cormen — The Best Friend Of a Man

传统题 时间 2000 ms 内存 256 MiB 5 尝试 1 已通过 1 标签

Cormen — The Best Friend Of a Man

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 a1, a2, ..., 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 b1, b2, ..., 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 a1, a2, ..., 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 b1, b2, ..., 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.

Samples

3 5
2 0 1
4
2 3 2
3 1
0 0 0
1
0 1 0
4 6
2 4 3 5
0
2 4 3 5

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