题目描述
Problem Statement
For a positive integer x, let f(x) denote the sum of its digits. For instance, we have f(153) = 1 + 5 + 3 = 9, f(2023) = 2 + 0 + 2 + 3 = 7, and f(1) = 1.
You are given a sequence of positive integers $A = (A_1, \ldots, A_N).$ Find the minimum possible value of $\sum_{i=1}^N f(A_i + x)$ where x is a non-negative integer.
Input
The input is given from Standard Input in the following format:
N
$A_1 \ldots A_N$
Output
Print the minimum possible value of $\sum_{i=1}^N f(A_i + x)$ where x is a non-negative integer.
Constraints
- $1\leq N\leq 2\times 10^5$
- $1\leq A_i < 10^9$
Sample Input 1
4
4 13 8 6
Sample Output 1
14
For instance, $x = 7 makes \sum_{i=1}^N f(A_i+x) = f(11) + f(20) + f(15) + f(13) = 14$.
Sample Input 2
4
123 45 678 90
Sample Output 2
34
For instance, $x = 22 makes \sum_{i=1}^N f(A_i+x) = f(145) + f(67) + f(700) + f(112) = 34$.
Sample Input 3
3
1 10 100
Sample Output 3
3
For instance, $x = 0 makes \sum_{i=1}^N f(A_i+x) = f(1) + f(10) + f(100) = 3$.
Sample Input 4
1
153153153
Sample Output 4
1
For instance, $x = 9999846846847 makes \sum_{i=1}^N f(A_i+x) = f(10000000000000) = 1$.
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分