题库练习 Ones
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A14125 | Ones

时间限制1s
内存限制256MB
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题目描述

You are given a positive (greater than zero) integer $n$ .

You have to represent $n$ as the sum of integers (possibly negative) consisting only of ones (digits '1'). For example, $24 = 11 + 11 + 1 + 1$ and $102 = 111 - 11 + 1 + 1$ .

Among all possible representations, you have to find the one that uses the minimum number of ones in total.

输入格式

The single line contains one integer $n$ ( $1 \le n < 10^{50}$ ).

输出格式

Print one integer $x$ — the minimum number of ones, such that there exist a representation of $n$ as the sum of integers (possibly negative) that uses $x$ ones in total.

输入输出样例

输入 #1
24
输出 #1
6
输入 #2
102
输出 #2
7
C++ 编辑器
输入
输出