Codeforces Beta Round #89 (Div. 2) C. Fancy Number

C. Fancy Number

time limit per test

2 seconds

memory limit per test

256 megabytes

input

standard input

output

standard output

A car number in Berland consists of exactlyndigits. A number is called beautiful if it has at leastkequal digits. Vasya wants to change the digits in his car's number so that the number became beautiful. To replace one ofndigits Vasya has to pay the sum of money, equal to the absolute difference between the old digit and the new one.

Help Vasya: find the minimum sum of money he should pay to make the number of his car beautiful. You should also find the resulting beautiful number. If there are several such numbers, then print the lexicographically minimum one.

Input

The first line contains two space-separated integersnandk(2 ≤ n ≤ 10⁴, 2 ≤ k ≤ n) which represent how many digits the number has and how many equal digits a beautiful number should have. The second line consists ofndigits. It describes the old number of Vasya's car. It is guaranteed that the number contains no spaces and only contains digits.

Output

On the first line print the minimum sum of money Vasya needs to change the number. On the second line print the car's new number. If there are several solutions, print the lexicographically minimum one.

Sample test(s)

input

6 5
898196

output

4
888188

input

3 2
533

output

0
533

input

10 6
0001112223

output

3
0000002223

Note

In the first sample replacing the second digit with an "8" costs|9 - 8| = 1. Replacing the fifth digit with an "8" costs the same. Replacing the sixth digit costs|6 - 8| = 2. As a result, Vasya will pay1 + 1 + 2 = 4for a beautiful number "888188".

The lexicographical comparison of strings is performed by the < operator in modern programming languages. The stringxis lexicographically smaller than the stringy, if there exists suchi(1 ≤ i ≤ n), thatx_i < y_i, and for anyj(1 ≤ j < i)x_j = y_j. The strings compared in this problem will always have the lengthn.

这道题明显是YY题，不过应该很好想到。

先把0-9每个数的个数统计出来，然后就是枚举0-9了

枚举的时候是枚举绝对值大小，把i从1到9枚举，设绝对值大小为t, 那么原串中要被换掉的数就为i+t和i-t，那么优先换谁好呢，如果换i+t，显然原串的字典序会变小，换i-t就会使字典序增大，所以要优先换掉i+t,而且，换i+t时要从左往右换，这样会使原串尽可能的变小，而换i-t时，就要从右向左换，这样，就会使原串的尽量少的变大。

代码就不写了，应该很好写