问题 M: Writing Books

内存限制：256 MB 时间限制：1 S 标准输入输出

题目类型：传统评测方式：文本比较上传者：

提交：14 通过：8

链接：https://ac.nowcoder.com/acm/contest/57361/M
来源：牛客网
Bandycar is writing page numbers for

T

books. The page numbers of all books start from

1

. The

i

-th book has

n_i

pages. Bandycar wants to know, for each book, how many digits does he need to write.

The first line contains an integer

T

The

i

-th line in the following

T

lines contains an integer

n_i

Output

T

lines, the

i

-th line contains the answer to the

i

-th book.

2
15
1000

21
2893

For the first book, page

1

9

each has one digit; page

10

15

each has two digits. So the answer is

1×9+2×6=211\times9+2\times6=21

 $1 \leq T \leq 1 0^{5}, 1 \leq n_{i} \leq 1 0^{9}$ .