Codeforces Beta Round 89 (Div. 2)
C
Fancy Number
Codeforces
1900
原题
← BD →
翻译中…

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

翻译中…

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.

翻译中…

Input

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The first line contains two space-separated integers $*n*$ and $*k*$ ($2 ≤ *n* ≤ 10^{4}, 2 ≤ *k* ≤ *n*$) which represent how many digits the number has and how many equal digits a beautiful number should have. The second line consists of $*n*$ digits. It describes the old number of Vasya's car. It is guaranteed that the number contains no spaces and only contains digits.

翻译中…

Output

翻译中…

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.

翻译中…

Note

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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 pay $1 + 1 + 2 = 4$ for a beautiful number "888188".

翻译中…

The lexicographical comparison of strings is performed by the < operator in modern programming languages. The string $*x*$ is lexicographically smaller than the string $*y*$, if there exists such $*i*$ ($1 ≤ *i* ≤ *n*$), that $*x*_{*i*} < *y*_{*i*}$, and for any $*j*$ ($1 ≤ *j* < *i*$) $*x*_{*j*} = *y*_{*j*}$. The strings compared in this problem will always have the length $*n*$.

翻译中…

样例

Input #1
6 5
898196
Output #1
4
888188
InputCopy OutputCopy
Input #2
3 2
533
Output #2
0
533
InputCopy OutputCopy
Input #3
10 6
0001112223
Output #3
3
0000002223
InputCopy OutputCopy
题目信息
题号
118C
时间限制
2 s
内存限制
256 MB
标签
暴力
贪心
排序
字符串

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